99040590 has 64 divisors (see below), whose sum is σ = 288126720. Its totient is φ = 24009120.

The previous prime is 99040573. The next prime is 99040607. The reversal of 99040590 is 9504099.

It is an interprime number because it is at equal distance from previous prime (99040573) and next prime (99040607).

99040590 is a modest number, since divided by 40590 gives 990 as remainder.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 13704 + ... + 19643.

It is an arithmetic number, because the mean of its divisors is an integer number (4501980).

Almost surely, 2^99040590 is an apocalyptic number.

99040590 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99040590 is an abundant number, since it is smaller than the sum of its proper divisors (189086130).

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

99040590 is a wasteful number, since it uses less digits than its factorization.

99040590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33374 (or 33368 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 99040590 is about 9951.9138862834. The cubic root of 99040590 is about 462.6697151682.

The spelling of 99040590 in words is "ninety-nine million, forty thousand, five hundred ninety".