74842656 has 48 divisors (see below), whose sum is σ = 224529984. Its totient is φ = 21383424.

The previous prime is 74842643. The next prime is 74842679. The reversal of 74842656 is 65624847.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55015 + ... + 56358.

It is an arithmetic number, because the mean of its divisors is an integer number (4677708).

Almost surely, 2^74842656 is an apocalyptic number.

It is an amenable number.

74842656 is an abundant number, since it is smaller than the sum of its proper divisors (149687328).

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

74842656 is a wasteful number, since it uses less digits than its factorization.

74842656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111393 (or 111385 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 74842656 is about 8651.1650082518. The cubic root of 74842656 is about 421.4212171354.

The spelling of 74842656 in words is "seventy-four million, eight hundred forty-two thousand, six hundred fifty-six".