74385213 has 32 divisors (see below), whose sum is σ = 117891072. Its totient is φ = 40824000.

The previous prime is 74385163. The next prime is 74385257. The reversal of 74385213 is 31258347.

It is not a de Polignac number, because 74385213 - 2⁸ = 74384957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74385713) 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, 105763 + ... + 106463.

It is an arithmetic number, because the mean of its divisors is an integer number (3684096).

Almost surely, 2^74385213 is an apocalyptic number.

It is an amenable number.

74385213 is a deficient number, since it is larger than the sum of its proper divisors (43505859).

74385213 is a wasteful number, since it uses less digits than its factorization.

74385213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its digits is 20160, while the sum is 33.

The square root of 74385213 is about 8624.6862551631. The cubic root of 74385213 is about 420.5608776418.

The spelling of 74385213 in words is "seventy-four million, three hundred eighty-five thousand, two hundred thirteen".