99899044 has 18 divisors (see below), whose sum is σ = 203366310. Its totient is φ = 42813792.

The previous prime is 99898973. The next prime is 99899047. The reversal of 99899044 is 44099899.

It can be written as a sum of positive squares in only one way, i.e., 57153600 + 42745444 = 7560^2 + 6538^2 .

It is a super-2 number, since 2×99899044² = 19959637984227872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99898982 and 99899000.

It is not an unprimeable number, because it can be changed into a prime (99899047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254649 + ... + 255040.

Almost surely, 2^99899044 is an apocalyptic number.

It is an amenable number.

99899044 is an abundant number, since it is smaller than the sum of its proper divisors (103467266).

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

99899044 is a wasteful number, since it uses less digits than its factorization.

99899044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509707 (or 509698 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 99899044 is about 9994.9509253423. The cubic root of 99899044 is about 464.0026320203.

The spelling of 99899044 in words is "ninety-nine million, eight hundred ninety-nine thousand, forty-four".