74268864 has 42 divisors (see below), whose sum is σ = 212879940. Its totient is φ = 24756096.

The previous prime is 74268851. The next prime is 74268881. The reversal of 74268864 is 46886247.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63894 + ... + 65045.

It is an arithmetic number, because the mean of its divisors is an integer number (5068570).

Almost surely, 2^74268864 is an apocalyptic number.

It is an amenable number.

74268864 is an abundant number, since it is smaller than the sum of its proper divisors (138611076).

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

74268864 is a wasteful number, since it uses less digits than its factorization.

74268864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128957 (or 128944 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 74268864 is about 8617.9385005928. The cubic root of 74268864 is about 420.3414909749.

It can be divided in two parts, 7426 and 8864, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 74268864 in words is "seventy-four million, two hundred sixty-eight thousand, eight hundred sixty-four".