74943906 has 16 divisors (see below), whose sum is σ = 150294144. Its totient is φ = 24913584.

The previous prime is 74943901. The next prime is 74943949. The reversal of 74943906 is 60934947.

It is not an unprimeable number, because it can be changed into a prime (74943901) 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, 14506 + ... + 18981.

It is an arithmetic number, because the mean of its divisors is an integer number (9393384).

Almost surely, 2^74943906 is an apocalyptic number.

74943906 is an abundant number, since it is smaller than the sum of its proper divisors (75350238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74943906 is a wasteful number, since it uses less digits than its factorization.

74943906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33865.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 74943906 is about 8657.0148434665. The cubic root of 74943906 is about 421.6111697355.

The spelling of 74943906 in words is "seventy-four million, nine hundred forty-three thousand, nine hundred six".