212642544 has 40 divisors (see below), whose sum is σ = 573213312. Its totient is φ = 67798720.

The previous prime is 212642537. The next prime is 212642561. The reversal of 212642544 is 445246212.

212642544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 95202 + ... + 97409.

Almost surely, 2^212642544 is an apocalyptic number.

212642544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212642544 is an abundant number, since it is smaller than the sum of its proper divisors (360570768).

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

212642544 is a wasteful number, since it uses less digits than its factorization.

212642544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192645 (or 192639 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 212642544 is about 14582.2681363360. The cubic root of 212642544 is about 596.8749966247.

Adding to 212642544 its reverse (445246212), we get a palindrome (657888756).

The spelling of 212642544 in words is "two hundred twelve million, six hundred forty-two thousand, five hundred forty-four".