315032400446 has 4 divisors (see below), whose sum is σ = 472548600672. Its totient is φ = 157516200222.

The previous prime is 315032400413. The next prime is 315032400479. The reversal of 315032400446 is 644004230513.

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

It is an interprime number because it is at equal distance from previous prime (315032400413) and next prime (315032400479).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78758100110 + ... + 78758100113.

It is an arithmetic number, because the mean of its divisors is an integer number (118137150168).

Almost surely, 2^315032400446 is an apocalyptic number.

315032400446 is a deficient number, since it is larger than the sum of its proper divisors (157516200226).

315032400446 is a wasteful number, since it uses less digits than its factorization.

315032400446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157516200225.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 315032400446 its reverse (644004230513), we get a palindrome (959036630959).

The spelling of 315032400446 in words is "three hundred fifteen billion, thirty-two million, four hundred thousand, four hundred forty-six".