432400212 has 18 divisors (see below), whose sum is σ = 1093011738. Its totient is φ = 144133392.

The previous prime is 432400193. The next prime is 432400247. The reversal of 432400212 is 212004234.

It can be written as a sum of positive squares in only one way, i.e., 412739856 + 19660356 = 20316^2 + 4434^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6005523 + ... + 6005594.

Almost surely, 2^432400212 is an apocalyptic number.

It is an amenable number.

432400212 is an abundant number, since it is smaller than the sum of its proper divisors (660611526).

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

432400212 is a wasteful number, since it uses less digits than its factorization.

432400212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12011127 (or 12011122 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 432400212 is about 20794.2350664794. The cubic root of 432400212 is about 756.1860002576.

Adding to 432400212 its reverse (212004234), we get a palindrome (644404446).

The spelling of 432400212 in words is "four hundred thirty-two million, four hundred thousand, two hundred twelve".