213188880 has 40 divisors (see below), whose sum is σ = 660886272. Its totient is φ = 56850304.

The previous prime is 213188867. The next prime is 213188893. The reversal of 213188880 is 88881312.

It is an interprime number because it is at equal distance from previous prime (213188867) and next prime (213188893).

It is a tau number, because it is divible by the number of its divisors (40).

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, 443904 + ... + 444383.

Almost surely, 2^213188880 is an apocalyptic number.

213188880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213188880 is an abundant number, since it is smaller than the sum of its proper divisors (447697392).

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

213188880 is a wasteful number, since it uses less digits than its factorization.

213188880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888303 (or 888297 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 39.

The square root of 213188880 is about 14600.9890075981. The cubic root of 213188880 is about 597.3857370364.

The spelling of 213188880 in words is "two hundred thirteen million, one hundred eighty-eight thousand, eight hundred eighty".