319408340 has 12 divisors (see below), whose sum is σ = 670757556. Its totient is φ = 127763328.

The previous prime is 319408307. The next prime is 319408351. The reversal of 319408340 is 43804913.

It can be written as a sum of positive squares in 2 ways, for example, as 252364996 + 67043344 = 15886^2 + 8188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 319408297 and 319408306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7985189 + ... + 7985228.

It is an arithmetic number, because the mean of its divisors is an integer number (55896463).

Almost surely, 2^319408340 is an apocalyptic number.

It is an amenable number.

319408340 is an abundant number, since it is smaller than the sum of its proper divisors (351349216).

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

319408340 is a wasteful number, since it uses less digits than its factorization.

319408340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15970426 (or 15970424 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 319408340 is about 17871.9987690241. The cubic root of 319408340 is about 683.5685667756.

The spelling of 319408340 in words is "three hundred nineteen million, four hundred eight thousand, three hundred forty".