919322812 has 24 divisors (see below), whose sum is σ = 1639161216. Its totient is φ = 451044528.

The previous prime is 919322801. The next prime is 919322819. The reversal of 919322812 is 218223919.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919322819) 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, 63963 + ... + 77005.

It is an arithmetic number, because the mean of its divisors is an integer number (68298384).

Almost surely, 2^919322812 is an apocalyptic number.

It is an amenable number.

919322812 is a deficient number, since it is larger than the sum of its proper divisors (719838404).

919322812 is a wasteful number, since it uses less digits than its factorization.

919322812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377 (or 13375 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 919322812 is about 30320.3366076302. The cubic root of 919322812 is about 972.3501352235.

The spelling of 919322812 in words is "nine hundred nineteen million, three hundred twenty-two thousand, eight hundred twelve".