74157672 has 32 divisors (see below), whose sum is σ = 196300800. Its totient is φ = 23265024.

The previous prime is 74157667. The next prime is 74157683. The reversal of 74157672 is 27675147.

It is a self number, because there is not a number n which added to its sum of digits gives 74157672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90472 + ... + 91287.

It is an arithmetic number, because the mean of its divisors is an integer number (6134400).

Almost surely, 2^74157672 is an apocalyptic number.

It is an amenable number.

74157672 is an abundant number, since it is smaller than the sum of its proper divisors (122143128).

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

74157672 is a wasteful number, since it uses less digits than its factorization.

74157672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181785 (or 181781 counting only the distinct ones).

The product of its digits is 82320, while the sum is 39.

The square root of 74157672 is about 8611.4848893788. The cubic root of 74157672 is about 420.1316140810.

The spelling of 74157672 in words is "seventy-four million, one hundred fifty-seven thousand, six hundred seventy-two".