1274004720 has 320 divisors, whose sum is σ = 4749696000. Its totient is φ = 312781824.

The previous prime is 1274004671. The next prime is 1274004733. The reversal of 1274004720 is 274004721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1518061 + ... + 1518899.

It is an arithmetic number, because the mean of its divisors is an integer number (14842800).

Almost surely, 2^1274004720 is an apocalyptic number.

1274004720 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 1274004720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2374848000).

1274004720 is an abundant number, since it is smaller than the sum of its proper divisors (3475691280).

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

1274004720 is a wasteful number, since it uses less digits than its factorization.

1274004720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 1274004720 is about 35693.2027142424. The cubic root of 1274004720 is about 1084.0692166783.

Subtracting from 1274004720 its reverse (274004721), we obtain a palindrome (999999999).

The spelling of 1274004720 in words is "one billion, two hundred seventy-four million, four thousand, seven hundred twenty".