213040432 has 40 divisors (see below), whose sum is σ = 464827392. Its totient is φ = 93710400.

The previous prime is 213040393. The next prime is 213040433. The reversal of 213040432 is 234040312.

213040432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213040433) 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, 14068 + ... + 24979.

Almost surely, 2^213040432 is an apocalyptic number.

213040432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213040432 is an abundant number, since it is smaller than the sum of its proper divisors (251786960).

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

213040432 is a wasteful number, since it uses less digits than its factorization.

213040432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39097 (or 39091 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 213040432 is about 14595.9046310943. The cubic root of 213040432 is about 597.2470473304.

Adding to 213040432 its reverse (234040312), we get a palindrome (447080744).

The spelling of 213040432 in words is "two hundred thirteen million, forty thousand, four hundred thirty-two".