99440032 has 24 divisors (see below), whose sum is σ = 197029476. Its totient is φ = 49400832.

The previous prime is 99440027. The next prime is 99440041. The reversal of 99440032 is 23004499.

It can be written as a sum of positive squares in 2 ways, for example, as 99121936 + 318096 = 9956^2 + 564^2 .

It is a super-2 number, since 2×99440032² = 19776639928322048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99439976 and 99440003.

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, 4873 + ... + 14920.

Almost surely, 2^99440032 is an apocalyptic number.

It is an amenable number.

99440032 is a deficient number, since it is larger than the sum of its proper divisors (97589444).

99440032 is a wasteful number, since it uses less digits than its factorization.

99440032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19960 (or 19952 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 99440032 is about 9971.9622943531. The cubic root of 99440032 is about 463.2908807552.

The spelling of 99440032 in words is "ninety-nine million, four hundred forty thousand, thirty-two".