212040232 has 16 divisors (see below), whose sum is σ = 397912500. Its totient is φ = 105930240.

The previous prime is 212040223. The next prime is 212040263. The reversal of 212040232 is 232040212.

It can be written as a sum of positive squares in 2 ways, for example, as 198979236 + 13060996 = 14106^2 + 3614^2 .

It is a super-2 number, since 2×212040232² = 89922119973227648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619 + ... + 20602.

Almost surely, 2^212040232 is an apocalyptic number.

It is an amenable number.

212040232 is a deficient number, since it is larger than the sum of its proper divisors (185872268).

212040232 is a wasteful number, since it uses less digits than its factorization.

212040232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22476 (or 22472 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 212040232 is about 14561.6012855730. The cubic root of 212040232 is about 596.3109123559.

Adding to 212040232 its reverse (232040212), we get a palindrome (444080444).

The spelling of 212040232 in words is "two hundred twelve million, forty thousand, two hundred thirty-two".