99243690 has 64 divisors (see below), whose sum is σ = 293158656. Its totient is φ = 20938752.

The previous prime is 99243659. The next prime is 99243701. The reversal of 99243690 is 9634299.

It is a super-2 number, since 2×99243690² = 19698620009632200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15447 + ... + 20906.

It is an arithmetic number, because the mean of its divisors is an integer number (4580604).

Almost surely, 2^99243690 is an apocalyptic number.

99243690 is an abundant number, since it is smaller than the sum of its proper divisors (193914966).

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

99243690 is a wasteful number, since it uses less digits than its factorization.

99243690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36383.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 99243690 is about 9962.1127277300. The cubic root of 99243690 is about 462.9857608740.

The spelling of 99243690 in words is "ninety-nine million, two hundred forty-three thousand, six hundred ninety".