90298128 has 20 divisors (see below), whose sum is σ = 233270288. Its totient is φ = 30099360.

The previous prime is 90298123. The next prime is 90298129. The reversal of 90298128 is 82189209.

It is not an unprimeable number, because it can be changed into a prime (90298123) 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, 940558 + ... + 940653.

Almost surely, 2^90298128 is an apocalyptic number.

It is an amenable number.

90298128 is an abundant number, since it is smaller than the sum of its proper divisors (142972160).

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

90298128 is a wasteful number, since it uses less digits than its factorization.

90298128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881222 (or 1881216 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 90298128 is about 9502.5327150187. The cubic root of 90298128 is about 448.6347560357.

The spelling of 90298128 in words is "ninety million, two hundred ninety-eight thousand, one hundred twenty-eight".