74385212 has 12 divisors (see below), whose sum is σ = 142008216. Its totient is φ = 33811440.

The previous prime is 74385163. The next prime is 74385257. The reversal of 74385212 is 21258347.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845243 + ... + 845330.

It is an arithmetic number, because the mean of its divisors is an integer number (11834018).

Almost surely, 2^74385212 is an apocalyptic number.

It is an amenable number.

74385212 is a deficient number, since it is larger than the sum of its proper divisors (67623004).

74385212 is a wasteful number, since it uses less digits than its factorization.

74385212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690588 (or 1690586 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 74385212 is about 8624.6861971900. The cubic root of 74385212 is about 420.5608757572.

The spelling of 74385212 in words is "seventy-four million, three hundred eighty-five thousand, two hundred twelve".