1274434560 has 440 divisors, whose sum is σ = 5231149440. Its totient is φ = 290635776.

The previous prime is 1274434547. The next prime is 1274434561. The reversal of 1274434560 is 654344721.

1274434560 is a `hidden beast` number, since 1 + 27 + 44 + 34 + 560 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274434561) 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 39 ways as a sum of consecutive naturals, for example, 2902821 + ... + 2903259.

It is an arithmetic number, because the mean of its divisors is an integer number (11888976).

Almost surely, 2^1274434560 is an apocalyptic number.

1274434560 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 1274434560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2615574720).

1274434560 is an abundant number, since it is smaller than the sum of its proper divisors (3956714880).

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

1274434560 is an equidigital number, since it uses as much as digits as its factorization.

1274434560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 1274434560 is about 35699.2235209675. The cubic root of 1274434560 is about 1084.1911220132.

The spelling of 1274434560 in words is "one billion, two hundred seventy-four million, four hundred thirty-four thousand, five hundred sixty".