213364920 has 32 divisors (see below), whose sum is σ = 640095120. Its totient is φ = 56897280.

The previous prime is 213364897. The next prime is 213364937. The reversal of 213364920 is 29463312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888901 + ... + 889140.

Almost surely, 2^213364920 is an apocalyptic number.

213364920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213364920 is an abundant number, since it is smaller than the sum of its proper divisors (426730200).

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

213364920 is a wasteful number, since it uses less digits than its factorization.

213364920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778055 (or 1778051 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 213364920 is about 14607.0161223982. The cubic root of 213364920 is about 597.5501215518.

The spelling of 213364920 in words is "two hundred thirteen million, three hundred sixty-four thousand, nine hundred twenty".