210432680 has 32 divisors (see below), whose sum is σ = 475561800. Its totient is φ = 83801856.

The previous prime is 210432679. The next prime is 210432689. The reversal of 210432680 is 86234012.

It can be written as a sum of positive squares in 4 ways, for example, as 204547204 + 5885476 = 14302^2 + 2426^2 .

It is not an unprimeable number, because it can be changed into a prime (210432689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327 + ... + 20646.

Almost surely, 2^210432680 is an apocalyptic number.

210432680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210432680 is an abundant number, since it is smaller than the sum of its proper divisors (265129120).

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

210432680 is a wasteful number, since it uses less digits than its factorization.

210432680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23213 (or 23209 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 210432680 is about 14506.2979426179. The cubic root of 210432680 is about 594.8001400164.

Adding to 210432680 its reverse (86234012), we get a palindrome (296666692).

It can be divided in two parts, 210432 and 680, that added together give a palindrome (211112).

The spelling of 210432680 in words is "two hundred ten million, four hundred thirty-two thousand, six hundred eighty".