213344860 has 24 divisors (see below), whose sum is σ = 453425616. Its totient is φ = 84309120.

The previous prime is 213344809. The next prime is 213344861. The reversal of 213344860 is 68443312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213344861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62601 + ... + 65920.

It is an arithmetic number, because the mean of its divisors is an integer number (18892734).

Almost surely, 2^213344860 is an apocalyptic number.

213344860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213344860 is an abundant number, since it is smaller than the sum of its proper divisors (240080756).

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

213344860 is a wasteful number, since it uses less digits than its factorization.

213344860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128613 (or 128611 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 213344860 is about 14606.3294499337. The cubic root of 213344860 is about 597.5313942760.

The spelling of 213344860 in words is "two hundred thirteen million, three hundred forty-four thousand, eight hundred sixty".