319396540 has 12 divisors (see below), whose sum is σ = 670732776. Its totient is φ = 127758608.

The previous prime is 319396531. The next prime is 319396541. The reversal of 319396540 is 45693913.

It is a junction number, because it is equal to n+sod(n) for n = 319396493 and 319396502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319396541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7984894 + ... + 7984933.

It is an arithmetic number, because the mean of its divisors is an integer number (55894398).

Almost surely, 2^319396540 is an apocalyptic number.

It is an amenable number.

319396540 is an abundant number, since it is smaller than the sum of its proper divisors (351336236).

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

319396540 is a wasteful number, since it uses less digits than its factorization.

319396540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15969836 (or 15969834 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 319396540 is about 17871.6686406166. The cubic root of 319396540 is about 683.5601489110.

The spelling of 319396540 in words is "three hundred nineteen million, three hundred ninety-six thousand, five hundred forty".