74231900 has 36 divisors (see below), whose sum is σ = 161468832. Its totient is φ = 29621760.

The previous prime is 74231897. The next prime is 74231903. The reversal of 74231900 is 913247.

It is an interprime number because it is at equal distance from previous prime (74231897) and next prime (74231903).

It is a super-2 number, since 2×74231900² = 11020749955220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74231900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74231903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66749 + ... + 67851.

Almost surely, 2^74231900 is an apocalyptic number.

It is an amenable number.

74231900 is an abundant number, since it is smaller than the sum of its proper divisors (87236932).

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

74231900 is a wasteful number, since it uses less digits than its factorization.

74231900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 74231900 is about 8615.7936372687. The cubic root of 74231900 is about 420.2717440202.

The spelling of 74231900 in words is "seventy-four million, two hundred thirty-one thousand, nine hundred".