212743432 has 32 divisors (see below), whose sum is σ = 444424320. Its totient is φ = 94642240.

The previous prime is 212743429. The next prime is 212743441. The reversal of 212743432 is 234347212.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 212743432.

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, 21583 + ... + 29854.

It is an arithmetic number, because the mean of its divisors is an integer number (13888260).

Almost surely, 2^212743432 is an apocalyptic number.

212743432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212743432 is an abundant number, since it is smaller than the sum of its proper divisors (231680888).

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

212743432 is a wasteful number, since it uses less digits than its factorization.

212743432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51501 (or 51497 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 212743432 is about 14585.7269959368. The cubic root of 212743432 is about 596.9693772422.

The spelling of 212743432 in words is "two hundred twelve million, seven hundred forty-three thousand, four hundred thirty-two".