1274172480 has 252 divisors, whose sum is σ = 5098717260. Its totient is φ = 291207168.

The previous prime is 1274172463. The next prime is 1274172481. The reversal of 1274172480 is 842714721.

1274172480 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 172 + 480 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 997549056 + 276623424 = 31584^2 + 16632^2 .

It is a tau number, because it is divible by the number of its divisors (252).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1274172481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 136606 + ... + 145634.

It is an arithmetic number, because the mean of its divisors is an integer number (20233005).

Almost surely, 2^1274172480 is an apocalyptic number.

1274172480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1274172480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2549358630).

1274172480 is an abundant number, since it is smaller than the sum of its proper divisors (3824544780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1274172480 is a wasteful number, since it uses less digits than its factorization.

1274172480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9066 (or 9046 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 1274172480 is about 35695.5526641625. The cubic root of 1274172480 is about 1084.1167977343.

The spelling of 1274172480 in words is "one billion, two hundred seventy-four million, one hundred seventy-two thousand, four hundred eighty".