319100040 has 128 divisors (see below), whose sum is σ = 1215648000. Its totient is φ = 72935424.

The previous prime is 319100017. The next prime is 319100053. The reversal of 319100040 is 40001913.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 319099986 and 319100022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13545 + ... + 28664.

It is an arithmetic number, because the mean of its divisors is an integer number (9497250).

Almost surely, 2^319100040 is an apocalyptic number.

319100040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

319100040 is an abundant number, since it is smaller than the sum of its proper divisors (896547960).

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

319100040 is a wasteful number, since it uses less digits than its factorization.

319100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42236 (or 42226 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 319100040 is about 17863.3714622968. The cubic root of 319100040 is about 683.3485641393.

Adding to 319100040 its reverse (40001913), we get a palindrome (359101953).

The spelling of 319100040 in words is "three hundred nineteen million, one hundred thousand, forty".