999670944 has 48 divisors (see below), whose sum is σ = 2629071648. Its totient is φ = 332596992.

The previous prime is 999670943. The next prime is 999670951. The reversal of 999670944 is 449076999.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×999670944² = 1998683992555702272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (999670943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42994 + ... + 62030.

It is an arithmetic number, because the mean of its divisors is an integer number (54772326).

Almost surely, 2^999670944 is an apocalyptic number.

It is an amenable number.

999670944 is an abundant number, since it is smaller than the sum of its proper divisors (1629400704).

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

999670944 is a wasteful number, since it uses less digits than its factorization.

999670944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19597 (or 19589 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 57.

The square root of 999670944 is about 31617.5733414189. The cubic root of 999670944 is about 999.8903026336.

The spelling of 999670944 in words is "nine hundred ninety-nine million, six hundred seventy thousand, nine hundred forty-four".