319438404 has 30 divisors (see below), whose sum is σ = 835075934. Its totient is φ = 106479360.

The previous prime is 319438403. The next prime is 319438409. The reversal of 319438404 is 404834913.

It can be written as a sum of positive squares in only one way, i.e., 187142400 + 132296004 = 13680^2 + 11502^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (319438403) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 492637 + ... + 493284.

Almost surely, 2^319438404 is an apocalyptic number.

It is an amenable number.

319438404 is an abundant number, since it is smaller than the sum of its proper divisors (515637530).

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

319438404 is a wasteful number, since it uses less digits than its factorization.

319438404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985937 (or 985926 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 319438404 is about 17872.8398415025. The cubic root of 319438404 is about 683.5900128454.

Adding to 319438404 its product of nonzero digits (41472), we get a square (319479876 = 17874²).

The spelling of 319438404 in words is "three hundred nineteen million, four hundred thirty-eight thousand, four hundred four".