212042464 has 24 divisors (see below), whose sum is σ = 418535208. Its totient is φ = 105747840.

The previous prime is 212042459. The next prime is 212042477. The reversal of 212042464 is 464240212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4359 + ... + 21049.

It is an arithmetic number, because the mean of its divisors is an integer number (17438967).

Almost surely, 2^212042464 is an apocalyptic number.

It is an amenable number.

212042464 is a deficient number, since it is larger than the sum of its proper divisors (206492744).

212042464 is a wasteful number, since it uses less digits than its factorization.

212042464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17098 (or 17090 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 212042464 is about 14561.6779252942. The cubic root of 212042464 is about 596.3130046653.

Adding to 212042464 its reverse (464240212), we get a palindrome (676282676).

The spelling of 212042464 in words is "two hundred twelve million, forty-two thousand, four hundred sixty-four".