99920324 has 24 divisors (see below), whose sum is σ = 201172608. Its totient is φ = 42537600.

The previous prime is 99920311. The next prime is 99920329. The reversal of 99920324 is 42302999.

It is a super-2 number, since 2×99920324² = 19968142296529952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99920329) 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, 7589 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (8382192).

Almost surely, 2^99920324 is an apocalyptic number.

It is an amenable number.

99920324 is an abundant number, since it is smaller than the sum of its proper divisors (101252284).

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

99920324 is a wasteful number, since it uses less digits than its factorization.

99920324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23795 (or 23793 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 99920324 is about 9996.0154061506. The cubic root of 99920324 is about 464.0355761961.

The spelling of 99920324 in words is "ninety-nine million, nine hundred twenty thousand, three hundred twenty-four".