212932244 has 18 divisors (see below), whose sum is σ = 433469610. Its totient is φ = 91256592.

The previous prime is 212932243. The next prime is 212932261. The reversal of 212932244 is 442239212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 212809744 + 122500 = 14588^2 + 350^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212932243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542999 + ... + 543390.

It is an arithmetic number, because the mean of its divisors is an integer number (24081645).

Almost surely, 2^212932244 is an apocalyptic number.

It is an amenable number.

212932244 is an abundant number, since it is smaller than the sum of its proper divisors (220537366).

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

212932244 is a wasteful number, since it uses less digits than its factorization.

212932244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086407 (or 1086398 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 212932244 is about 14592.1980523840. The cubic root of 212932244 is about 597.1459305239.

The spelling of 212932244 in words is "two hundred twelve million, nine hundred thirty-two thousand, two hundred forty-four".