74500090 has 24 divisors (see below), whose sum is σ = 155995092. Its totient is φ = 25542720.

The previous prime is 74500079. The next prime is 74500147. The reversal of 74500090 is 9000547.

It can be written as a sum of positive squares in 2 ways, for example, as 74494161 + 5929 = 8631^2 + 77^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75531 + ... + 76510.

Almost surely, 2^74500090 is an apocalyptic number.

74500090 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74500090 is an abundant number, since it is smaller than the sum of its proper divisors (81495002).

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

74500090 is a wasteful number, since it uses less digits than its factorization.

74500090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152062 (or 152055 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 74500090 is about 8631.3434643745. The cubic root of 74500090 is about 420.7772643880. Note that the first 3 decimals are identical.

The spelling of 74500090 in words is "seventy-four million, five hundred thousand, ninety".