212340264 has 16 divisors (see below), whose sum is σ = 530850720. Its totient is φ = 70780080.

The previous prime is 212340259. The next prime is 212340269. The reversal of 212340264 is 462043212.

It is an interprime number because it is at equal distance from previous prime (212340259) and next prime (212340269).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 8847511 = 212340264 / (2 + 1 + 2 + 3 + 4 + 0 + 2 + 6 + 4).

It is not an unprimeable number, because it can be changed into a prime (212340269) 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, 4423732 + ... + 4423779.

It is an arithmetic number, because the mean of its divisors is an integer number (33178170).

Almost surely, 2^212340264 is an apocalyptic number.

212340264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212340264 is an abundant number, since it is smaller than the sum of its proper divisors (318510456).

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

212340264 is a wasteful number, since it uses less digits than its factorization.

212340264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847520 (or 8847516 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 212340264 is about 14571.8998075062. The cubic root of 212340264 is about 596.5920351640.

Adding to 212340264 its reverse (462043212), we get a palindrome (674383476).

The spelling of 212340264 in words is "two hundred twelve million, three hundred forty thousand, two hundred sixty-four".