999955448 has 32 divisors (see below), whose sum is σ = 1909353600. Its totient is φ = 490870368.

The previous prime is 999955433. The next prime is 999955457. The reversal of 999955448 is 844559999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103613 + ... + 112851.

It is an arithmetic number, because the mean of its divisors is an integer number (59667300).

Almost surely, 2^999955448 is an apocalyptic number.

It is an amenable number.

999955448 is a deficient number, since it is larger than the sum of its proper divisors (909398152).

999955448 is a wasteful number, since it uses less digits than its factorization.

999955448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9491 (or 9487 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 62.

The square root of 999955448 is about 31622.0721648661. The cubic root of 999955448 is about 999.9851491128.

The spelling of 999955448 in words is "nine hundred ninety-nine million, nine hundred fifty-five thousand, four hundred forty-eight".