99957444 has 24 divisors (see below), whose sum is σ = 233468928. Its totient is φ = 33285600.

The previous prime is 99957443. The next prime is 99957449. The reversal of 99957444 is 44475999.

It is a happy number.

It is a super-2 number, since 2×99957444² = 19982981222026272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99957443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10194 + ... + 17430.

It is an arithmetic number, because the mean of its divisors is an integer number (9727872).

Almost surely, 2^99957444 is an apocalyptic number.

It is an amenable number.

99957444 is an abundant number, since it is smaller than the sum of its proper divisors (133511484).

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

99957444 is a wasteful number, since it uses less digits than its factorization.

99957444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8395 (or 8393 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 99957444 is about 9997.8719735752. The cubic root of 99957444 is about 464.0930315343.

The spelling of 99957444 in words is "ninety-nine million, nine hundred fifty-seven thousand, four hundred forty-four".