212440504 has 32 divisors (see below), whose sum is σ = 402837120. Its totient is φ = 105025536.

The previous prime is 212440499. The next prime is 212440507. The reversal of 212440504 is 405044212.

It is a happy number.

212440504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212440507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344004 + ... + 344620.

It is an arithmetic number, because the mean of its divisors is an integer number (12588660).

Almost surely, 2^212440504 is an apocalyptic number.

It is an amenable number.

212440504 is a deficient number, since it is larger than the sum of its proper divisors (190396616).

212440504 is a wasteful number, since it uses less digits than its factorization.

212440504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 212440504 is about 14575.3388982898. The cubic root of 212440504 is about 596.6858986272.

Adding to 212440504 its reverse (405044212), we get a palindrome (617484716).

The spelling of 212440504 in words is "two hundred twelve million, four hundred forty thousand, five hundred four".