74911930 has 16 divisors (see below), whose sum is σ = 139491720. Its totient is φ = 28931392.

The previous prime is 74911913. The next prime is 74911931. The reversal of 74911930 is 3911947.

It can be written as a sum of positive squares in 4 ways, for example, as 58110129 + 16801801 = 7623^2 + 4099^2 .

It is a super-2 number, since 2×74911930² = 11223594512649800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74911931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128869 + ... + 129448.

Almost surely, 2^74911930 is an apocalyptic number.

74911930 is a deficient number, since it is larger than the sum of its proper divisors (64579790).

74911930 is a wasteful number, since it uses less digits than its factorization.

74911930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258353.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 74911930 is about 8655.1678204411. The cubic root of 74911930 is about 421.5511988529.

The spelling of 74911930 in words is "seventy-four million, nine hundred eleven thousand, nine hundred thirty".