90492800 has 48 divisors (see below), whose sum is σ = 223553400. Its totient is φ = 36195840.

The previous prime is 90492799. The next prime is 90492803. The reversal of 90492800 is 829409.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90492803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10940 + ... + 17339.

Almost surely, 2^90492800 is an apocalyptic number.

It is an amenable number.

90492800 is an abundant number, since it is smaller than the sum of its proper divisors (133060600).

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

90492800 is a wasteful number, since it uses less digits than its factorization.

90492800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28303 (or 28286 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 90492800 is about 9512.7703640948. The cubic root of 90492800 is about 448.9569256450.

The spelling of 90492800 in words is "ninety million, four hundred ninety-two thousand, eight hundred".