212315304 has 16 divisors (see below), whose sum is σ = 530788320. Its totient is φ = 70771760.

The previous prime is 212315303. The next prime is 212315321. The reversal of 212315304 is 403513212.

212315304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212315304² = 90155576625224832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212315303) 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, 4423212 + ... + 4423259.

It is an arithmetic number, because the mean of its divisors is an integer number (33174270).

Almost surely, 2^212315304 is an apocalyptic number.

212315304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212315304 is an abundant number, since it is smaller than the sum of its proper divisors (318473016).

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

212315304 is a wasteful number, since it uses less digits than its factorization.

212315304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8846480 (or 8846476 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 212315304 is about 14571.0433394455. The cubic root of 212315304 is about 596.5686583435.

Adding to 212315304 its reverse (403513212), we get a palindrome (615828516).

The spelling of 212315304 in words is "two hundred twelve million, three hundred fifteen thousand, three hundred four".