90742980 has 24 divisors (see below), whose sum is σ = 254080512. Its totient is φ = 24198112.

The previous prime is 90742973. The next prime is 90743011. The reversal of 90742980 is 8924709.

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, 756132 + ... + 756251.

It is an arithmetic number, because the mean of its divisors is an integer number (10586688).

Almost surely, 2^90742980 is an apocalyptic number.

It is an amenable number.

90742980 is an abundant number, since it is smaller than the sum of its proper divisors (163337532).

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

90742980 is a wasteful number, since it uses less digits than its factorization.

90742980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512395 (or 1512393 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 90742980 is about 9525.9109800585. The cubic root of 90742980 is about 449.3702796878.

The spelling of 90742980 in words is "ninety million, seven hundred forty-two thousand, nine hundred eighty".