74923642 has 16 divisors (see below), whose sum is σ = 113884992. Its totient is φ = 36964800.

The previous prime is 74923637. The next prime is 74923643. The reversal of 74923642 is 24632947.

It is a super-2 number, since 2×74923642² = 11227104261088328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74923643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82153 + ... + 83059.

It is an arithmetic number, because the mean of its divisors is an integer number (7117812).

Almost surely, 2^74923642 is an apocalyptic number.

74923642 is a deficient number, since it is larger than the sum of its proper divisors (38961350).

74923642 is a wasteful number, since it uses less digits than its factorization.

74923642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413.

The product of its digits is 72576, while the sum is 37.

The square root of 74923642 is about 8655.8443839986. The cubic root of 74923642 is about 421.5731666506.

The spelling of 74923642 in words is "seventy-four million, nine hundred twenty-three thousand, six hundred forty-two".