99530840 has 16 divisors (see below), whose sum is σ = 223944480. Its totient is φ = 39812320.

The previous prime is 99530791. The next prime is 99530881. The reversal of 99530840 is 4803599.

It is a super-2 number, since 2×99530840² = 19812776222211200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99530794 and 99530803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244096 + ... + 1244175.

It is an arithmetic number, because the mean of its divisors is an integer number (13996530).

Almost surely, 2^99530840 is an apocalyptic number.

It is an amenable number.

99530840 is an abundant number, since it is smaller than the sum of its proper divisors (124413640).

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

99530840 is a wasteful number, since it uses less digits than its factorization.

99530840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488282 (or 2488278 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 99530840 is about 9976.5144213798. The cubic root of 99530840 is about 463.4318626039.

The spelling of 99530840 in words is "ninety-nine million, five hundred thirty thousand, eight hundred forty".