74636256 has 192 divisors, whose sum is σ = 228614400. Its totient is φ = 21159936.

The previous prime is 74636209. The next prime is 74636257. The reversal of 74636256 is 65263647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74636257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 899191 + ... + 899273.

It is an arithmetic number, because the mean of its divisors is an integer number (1190700).

Almost surely, 2^74636256 is an apocalyptic number.

74636256 is a gapful number since it is divisible by the number (76) 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 74636256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114307200).

74636256 is an abundant number, since it is smaller than the sum of its proper divisors (153978144).

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

74636256 is a wasteful number, since it uses less digits than its factorization.

74636256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 153 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 74636256 is about 8639.2277432650. The cubic root of 74636256 is about 421.0334640134.

The spelling of 74636256 in words is "seventy-four million, six hundred thirty-six thousand, two hundred fifty-six".