99998090040 has 64 divisors (see below), whose sum is σ = 309671516160. Its totient is φ = 25805957760.

The previous prime is 99998090033. The next prime is 99998090083. The reversal of 99998090040 is 4009089999.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13436884 + ... + 13444323.

It is an arithmetic number, because the mean of its divisors is an integer number (4838617440).

Almost surely, 2^99998090040 is an apocalyptic number.

It is an amenable number.

99998090040 is an abundant number, since it is smaller than the sum of its proper divisors (209673426120).

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

99998090040 is a wasteful number, since it uses less digits than its factorization.

99998090040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26881252 (or 26881248 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 57.

The spelling of 99998090040 in words is "ninety-nine billion, nine hundred ninety-eight million, ninety thousand, forty".