315199740 has 96 divisors (see below), whose sum is σ = 933246720. Its totient is φ = 79266816.

The previous prime is 315199739. The next prime is 315199789. The reversal of 315199740 is 47991513.

It is a happy number.

It is a congruent number.

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, 322132 + ... + 323108.

It is an arithmetic number, because the mean of its divisors is an integer number (9721320).

Almost surely, 2^315199740 is an apocalyptic number.

315199740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315199740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466623360).

315199740 is an abundant number, since it is smaller than the sum of its proper divisors (618046980).

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

315199740 is a wasteful number, since it uses less digits than its factorization.

315199740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 315199740 is about 17753.8654945902. The cubic root of 315199740 is about 680.5529959556.

The spelling of 315199740 in words is "three hundred fifteen million, one hundred ninety-nine thousand, seven hundred forty".