74129916 has 48 divisors (see below), whose sum is σ = 204503040. Its totient is φ = 20448960.

The previous prime is 74129863. The next prime is 74129917. The reversal of 74129916 is 61992147.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74129917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12780 + ... + 17651.

It is an arithmetic number, because the mean of its divisors is an integer number (4260480).

Almost surely, 2^74129916 is an apocalyptic number.

It is an amenable number.

74129916 is an abundant number, since it is smaller than the sum of its proper divisors (130373124).

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

74129916 is a wasteful number, since it uses less digits than its factorization.

74129916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30474 (or 30472 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 74129916 is about 8609.8731697976. The cubic root of 74129916 is about 420.0791914166.

The spelling of 74129916 in words is "seventy-four million, one hundred twenty-nine thousand, nine hundred sixteen".