74661256 has 16 divisors (see below), whose sum is σ = 140086800. Its totient is φ = 37304784.

The previous prime is 74661253. The next prime is 74661269. The reversal of 74661256 is 65216647.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74661253) 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 3 ways as a sum of consecutive naturals, for example, 15291 + ... + 19573.

It is an arithmetic number, because the mean of its divisors is an integer number (8755425).

Almost surely, 2^74661256 is an apocalyptic number.

It is an amenable number.

74661256 is a deficient number, since it is larger than the sum of its proper divisors (65425544).

74661256 is a wasteful number, since it uses less digits than its factorization.

74661256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468 (or 6464 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 74661256 is about 8640.6745107081. The cubic root of 74661256 is about 421.0804682539.

The spelling of 74661256 in words is "seventy-four million, six hundred sixty-one thousand, two hundred fifty-six".