315421452 has 30 divisors (see below), whose sum is σ = 824574828. Its totient is φ = 105140376.

The previous prime is 315421439. The next prime is 315421459. The reversal of 315421452 is 254124513.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 486438 + ... + 487085.

Almost surely, 2^315421452 is an apocalyptic number.

It is an amenable number.

315421452 is an abundant number, since it is smaller than the sum of its proper divisors (509153376).

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

315421452 is a wasteful number, since it uses less digits than its factorization.

315421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973539 (or 973528 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 315421452 is about 17760.1084456149. The cubic root of 315421452 is about 680.7125259113.

Adding to 315421452 its reverse (254124513), we get a palindrome (569545965).

The spelling of 315421452 in words is "three hundred fifteen million, four hundred twenty-one thousand, four hundred fifty-two".