315421458 has 64 divisors (see below), whose sum is σ = 716083200. Its totient is φ = 91748160.

The previous prime is 315421439. The next prime is 315421459. The reversal of 315421458 is 854124513.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (315421459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 426453 + ... + 427191.

It is an arithmetic number, because the mean of its divisors is an integer number (11188800).

Almost surely, 2^315421458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315421458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358041600).

315421458 is an abundant number, since it is smaller than the sum of its proper divisors (400661742).

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

315421458 is a wasteful number, since it uses less digits than its factorization.

315421458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007.

The product of its digits is 19200, while the sum is 33.

The square root of 315421458 is about 17760.1086145327. The cubic root of 315421458 is about 680.7125302275.

The spelling of 315421458 in words is "three hundred fifteen million, four hundred twenty-one thousand, four hundred fifty-eight".