319400812 has 24 divisors (see below), whose sum is σ = 577808000. Its totient is φ = 154327680.

The previous prime is 319400801. The next prime is 319400821. The reversal of 319400812 is 218004913.

It is a happy 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, 114814 + ... + 117562.

Almost surely, 2^319400812 is an apocalyptic number.

It is an amenable number.

319400812 is a deficient number, since it is larger than the sum of its proper divisors (258407188).

319400812 is a wasteful number, since it uses less digits than its factorization.

319400812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 319400812 is about 17871.7881589952. The cubic root of 319400812 is about 683.5631964873.

The spelling of 319400812 in words is "three hundred nineteen million, four hundred thousand, eight hundred twelve".