319438612 has 12 divisors (see below), whose sum is σ = 574126420. Its totient is φ = 155402496.

The previous prime is 319438607. The next prime is 319438627. The reversal of 319438612 is 216834913.

It can be written as a sum of positive squares in 2 ways, for example, as 115691536 + 203747076 = 10756^2 + 14274^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079037 + ... + 1079332.

Almost surely, 2^319438612 is an apocalyptic number.

It is an amenable number.

319438612 is a deficient number, since it is larger than the sum of its proper divisors (254687808).

319438612 is a wasteful number, since it uses less digits than its factorization.

319438612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158410 (or 2158408 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 319438612 is about 17872.8456603866. The cubic root of 319438612 is about 683.5901612169.

The spelling of 319438612 in words is "three hundred nineteen million, four hundred thirty-eight thousand, six hundred twelve".