74965680 has 60 divisors (see below), whose sum is σ = 251762160. Its totient is φ = 19990656.

The previous prime is 74965661. The next prime is 74965711. The reversal of 74965680 is 8656947.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51340 + ... + 52779.

It is an arithmetic number, because the mean of its divisors is an integer number (4196036).

Almost surely, 2^74965680 is an apocalyptic number.

It is an amenable number.

74965680 is an abundant number, since it is smaller than the sum of its proper divisors (176796480).

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

74965680 is a wasteful number, since it uses less digits than its factorization.

74965680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104138 (or 104129 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 74965680 is about 8658.2723449889. The cubic root of 74965680 is about 421.6519970386.

The spelling of 74965680 in words is "seventy-four million, nine hundred sixty-five thousand, six hundred eighty".