90900452 has 12 divisors (see below), whose sum is σ = 162775536. Its totient is φ = 44393160.

The previous prime is 90900451. The next prime is 90900457. The reversal of 90900452 is 25400909.

It is not an unprimeable number, because it can be changed into a prime (90900451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264074 + ... + 264417.

It is an arithmetic number, because the mean of its divisors is an integer number (13564628).

Almost surely, 2^90900452 is an apocalyptic number.

It is an amenable number.

90900452 is a deficient number, since it is larger than the sum of its proper divisors (71875084).

90900452 is a wasteful number, since it uses less digits than its factorization.

90900452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528538 (or 528536 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 90900452 is about 9534.1728534782. The cubic root of 90900452 is about 449.6300696382.

The spelling of 90900452 in words is "ninety million, nine hundred thousand, four hundred fifty-two".