74470043256 has 32 divisors (see below), whose sum is σ = 212771552640. Its totient is φ = 21277155168.

The previous prime is 74470043239. The next prime is 74470043269. The reversal of 74470043256 is 65234007447.

It is a super-2 number, since 2×74470043256² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 221636866 + ... + 221637201.

It is an arithmetic number, because the mean of its divisors is an integer number (6649111020).

Almost surely, 2^74470043256 is an apocalyptic number.

It is an amenable number.

74470043256 is an abundant number, since it is smaller than the sum of its proper divisors (138301509384).

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

74470043256 is a wasteful number, since it uses less digits than its factorization.

74470043256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443274083 (or 443274079 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 74470043256 in words is "seventy-four billion, four hundred seventy million, forty-three thousand, two hundred fifty-six".