90253398 has 16 divisors (see below), whose sum is σ = 182295216. Its totient is φ = 29786400.

The previous prime is 90253393. The next prime is 90253399. The reversal of 90253398 is 89335209.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90253393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73861 + ... + 75072.

It is an arithmetic number, because the mean of its divisors is an integer number (11393451).

Almost surely, 2^90253398 is an apocalyptic number.

90253398 is an abundant number, since it is smaller than the sum of its proper divisors (92041818).

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

90253398 is a wasteful number, since it uses less digits than its factorization.

90253398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149039.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 90253398 is about 9500.1788404219. The cubic root of 90253398 is about 448.5606653633.

The spelling of 90253398 in words is "ninety million, two hundred fifty-three thousand, three hundred ninety-eight".