74005690 has 16 divisors (see below), whose sum is σ = 145320480. Its totient is φ = 26911120.

The previous prime is 74005681. The next prime is 74005691. The reversal of 74005690 is 9650047.

It is a super-2 number, since 2×74005690² = 10953684304752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74005691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336280 + ... + 336499.

It is an arithmetic number, because the mean of its divisors is an integer number (9082530).

Almost surely, 2^74005690 is an apocalyptic number.

74005690 is a deficient number, since it is larger than the sum of its proper divisors (71314790).

74005690 is a wasteful number, since it uses less digits than its factorization.

74005690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672797.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 74005690 is about 8602.6559852176. The cubic root of 74005690 is about 419.8444057061.

The spelling of 74005690 in words is "seventy-four million, five thousand, six hundred ninety".