90098428 has 24 divisors (see below), whose sum is σ = 183254400. Its totient is φ = 37958448.

The previous prime is 90098423. The next prime is 90098471. The reversal of 90098428 is 82489009.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90098423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25618 + ... + 28921.

It is an arithmetic number, because the mean of its divisors is an integer number (7635600).

Almost surely, 2^90098428 is an apocalyptic number.

It is an amenable number.

90098428 is an abundant number, since it is smaller than the sum of its proper divisors (93155972).

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

90098428 is a wasteful number, since it uses less digits than its factorization.

90098428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54609 (or 54607 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 90098428 is about 9492.0191740219. The cubic root of 90098428 is about 448.3037839162.

The spelling of 90098428 in words is "ninety million, ninety-eight thousand, four hundred twenty-eight".