213900632 has 32 divisors (see below), whose sum is σ = 460555200. Its totient is φ = 92109600.

The previous prime is 213900601. The next prime is 213900671. The reversal of 213900632 is 236009312.

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, 62294 + ... + 65637.

It is an arithmetic number, because the mean of its divisors is an integer number (14392350).

Almost surely, 2^213900632 is an apocalyptic number.

213900632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213900632 is an abundant number, since it is smaller than the sum of its proper divisors (246654568).

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

213900632 is a wasteful number, since it uses less digits than its factorization.

213900632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127967 (or 127963 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 213900632 is about 14625.3421156566. The cubic root of 213900632 is about 598.0498088660.

Adding to 213900632 its reverse (236009312), we get a palindrome (449909944).

The spelling of 213900632 in words is "two hundred thirteen million, nine hundred thousand, six hundred thirty-two".