315443420 has 12 divisors (see below), whose sum is σ = 662431224. Its totient is φ = 126177360.

The previous prime is 315443419. The next prime is 315443423. The reversal of 315443420 is 24344513.

It is a self number, because there is not a number n which added to its sum of digits gives 315443420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315443423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7886066 + ... + 7886105.

It is an arithmetic number, because the mean of its divisors is an integer number (55202602).

Almost surely, 2^315443420 is an apocalyptic number.

It is an amenable number.

315443420 is an abundant number, since it is smaller than the sum of its proper divisors (346987804).

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

315443420 is a wasteful number, since it uses less digits than its factorization.

315443420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15772180 (or 15772178 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 315443420 is about 17760.7268995388. The cubic root of 315443420 is about 680.7283286260.

Adding to 315443420 its reverse (24344513), we get a palindrome (339787933).

The spelling of 315443420 in words is "three hundred fifteen million, four hundred forty-three thousand, four hundred twenty".