74660385 has 32 divisors (see below), whose sum is σ = 124121088. Its totient is φ = 38292480.

The previous prime is 74660371. The next prime is 74660387. The reversal of 74660385 is 58306647.

It is not a de Polignac number, because 74660385 - 2⁸ = 74660129 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (74660387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44064 + ... + 45726.

It is an arithmetic number, because the mean of its divisors is an integer number (3878784).

Almost surely, 2^74660385 is an apocalyptic number.

74660385 is the 4989-th octagonal number.

It is an amenable number.

74660385 is a deficient number, since it is larger than the sum of its proper divisors (49460703).

74660385 is a wasteful number, since it uses less digits than its factorization.

74660385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 74660385 is about 8640.6241094032. The cubic root of 74660385 is about 421.0788308026.

The spelling of 74660385 in words is "seventy-four million, six hundred sixty thousand, three hundred eighty-five".