74401256 has 8 divisors (see below), whose sum is σ = 139502370. Its totient is φ = 37200624.

The previous prime is 74401253. The next prime is 74401259. The reversal of 74401256 is 65210447.

It is an interprime number because it is at equal distance from previous prime (74401253) and next prime (74401259).

It can be written as a sum of positive squares in only one way, i.e., 45778756 + 28622500 = 6766^2 + 5350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (74401253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4650071 + ... + 4650086.

Almost surely, 2^74401256 is an apocalyptic number.

It is an amenable number.

74401256 is a deficient number, since it is larger than the sum of its proper divisors (65101114).

74401256 is a wasteful number, since it uses less digits than its factorization.

74401256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300163 (or 9300159 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 74401256 is about 8625.6162678385. The cubic root of 74401256 is about 420.5911102328.

The spelling of 74401256 in words is "seventy-four million, four hundred one thousand, two hundred fifty-six".