74673456 has 240 divisors, whose sum is σ = 243817728. Its totient is φ = 19514880.

The previous prime is 74673421. The next prime is 74673457. The reversal of 74673456 is 65437647.

It is a happy number.

It is a super-2 number, since 2×74673456² = 11152250061967872, which contains 22 as substring.

Its product of digits (423360) is a multiple of the sum of its prime factors (112).

It is not an unprimeable number, because it can be changed into a prime (74673457) 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 47 ways as a sum of consecutive naturals, for example, 1736571 + ... + 1736613.

Almost surely, 2^74673456 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 74673456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121908864).

74673456 is an abundant number, since it is smaller than the sum of its proper divisors (169144272).

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

74673456 is a wasteful number, since it uses less digits than its factorization.

74673456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 95 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The square root of 74673456 is about 8641.3804452761. The cubic root of 74673456 is about 421.1034025137.

The spelling of 74673456 in words is "seventy-four million, six hundred seventy-three thousand, four hundred fifty-six".