74931456 has 72 divisors (see below), whose sum is σ = 204154720. Its totient is φ = 24385536.

The previous prime is 74931431. The next prime is 74931473. The reversal of 74931456 is 65413947.

It is a super-2 number, since 2×74931456² = 11229446196559872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31890 + ... + 34158.

Almost surely, 2^74931456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74931456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102077360).

74931456 is an abundant number, since it is smaller than the sum of its proper divisors (129223264).

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

74931456 is a wasteful number, since it uses less digits than its factorization.

74931456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331 (or 2317 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 74931456 is about 8656.2957435614. The cubic root of 74931456 is about 421.5878218298.

The spelling of 74931456 in words is "seventy-four million, nine hundred thirty-one thousand, four hundred fifty-six".