99940344 has 64 divisors (see below), whose sum is σ = 286295040. Its totient is φ = 28479360.

The previous prime is 99940319. The next prime is 99940369. The reversal of 99940344 is 44304999.

It is an interprime number because it is at equal distance from previous prime (99940319) and next prime (99940369).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 99940296 and 99940305.

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 15 ways as a sum of consecutive naturals, for example, 109249 + ... + 110159.

It is an arithmetic number, because the mean of its divisors is an integer number (4473360).

Almost surely, 2^99940344 is an apocalyptic number.

It is an amenable number.

99940344 is an abundant number, since it is smaller than the sum of its proper divisors (186354696).

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

99940344 is a wasteful number, since it uses less digits than its factorization.

99940344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 99940344 is about 9997.0167550125. The cubic root of 99940344 is about 464.0665654600.

The spelling of 99940344 in words is "ninety-nine million, nine hundred forty thousand, three hundred forty-four".