74102812 has 24 divisors (see below), whose sum is σ = 156007040. Its totient is φ = 30086640.

The previous prime is 74102789. The next prime is 74102827. The reversal of 74102812 is 21820147.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69114 + ... + 70177.

Almost surely, 2^74102812 is an apocalyptic number.

It is an amenable number.

74102812 is an abundant number, since it is smaller than the sum of its proper divisors (81904228).

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

74102812 is a wasteful number, since it uses less digits than its factorization.

74102812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139321 (or 139319 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 74102812 is about 8608.2990189700. The cubic root of 74102812 is about 420.0279875529.

Adding to 74102812 its reverse (21820147), we get a palindrome (95922959).

The spelling of 74102812 in words is "seventy-four million, one hundred two thousand, eight hundred twelve".