98400990 has 16 divisors (see below), whose sum is σ = 236162448. Its totient is φ = 26240256.

The previous prime is 98400979. The next prime is 98401013. The reversal of 98400990 is 9900489.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639987 + ... + 1640046.

It is an arithmetic number, because the mean of its divisors is an integer number (14760153).

Almost surely, 2^98400990 is an apocalyptic number.

98400990 is an abundant number, since it is smaller than the sum of its proper divisors (137761458).

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

98400990 is a wasteful number, since it uses less digits than its factorization.

98400990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280043.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 98400990 is about 9919.7273148005. The cubic root of 98400990 is about 461.6715962292.

The spelling of 98400990 in words is "ninety-eight million, four hundred thousand, nine hundred ninety".