912668940 has 72 divisors (see below), whose sum is σ = 2770906320. Its totient is φ = 243160704.

The previous prime is 912668927. The next prime is 912668959. The reversal of 912668940 is 49866219.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358191 + ... + 360729.

It is an arithmetic number, because the mean of its divisors is an integer number (38484810).

Almost surely, 2^912668940 is an apocalyptic number.

912668940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

912668940 is an abundant number, since it is smaller than the sum of its proper divisors (1858237380).

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

912668940 is a wasteful number, since it uses less digits than its factorization.

912668940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4551 (or 4546 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 912668940 is about 30210.4111193476. The cubic root of 912668940 is about 969.9985616587.

The spelling of 912668940 in words is "nine hundred twelve million, six hundred sixty-eight thousand, nine hundred forty".