315404422 has 4 divisors (see below), whose sum is σ = 473106636. Its totient is φ = 157702210.

The previous prime is 315404393. The next prime is 315404429. The reversal of 315404422 is 224404513.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315404429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78851104 + ... + 78851107.

It is an arithmetic number, because the mean of its divisors is an integer number (118276659).

Almost surely, 2^315404422 is an apocalyptic number.

315404422 is a deficient number, since it is larger than the sum of its proper divisors (157702214).

315404422 is a wasteful number, since it uses less digits than its factorization.

315404422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157702213.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 315404422 is about 17759.6289938726. The cubic root of 315404422 is about 680.7002748497.

Adding to 315404422 its reverse (224404513), we get a palindrome (539808935).

Subtracting from 315404422 its reverse (224404513), we obtain a palindrome (90999909).

The spelling of 315404422 in words is "three hundred fifteen million, four hundred four thousand, four hundred twenty-two".