212486464 has 14 divisors (see below), whose sum is σ = 421652954. Its totient is φ = 106243200.

The previous prime is 212486459. The next prime is 212486467. The reversal of 212486464 is 464684212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 164044864 + 48441600 = 12808^2 + 6960^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212486467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1659987 + ... + 1660114.

Almost surely, 2^212486464 is an apocalyptic number.

It is an amenable number.

212486464 is a deficient number, since it is larger than the sum of its proper divisors (209166490).

212486464 is an equidigital number, since it uses as much as digits as its factorization.

212486464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320113 (or 3320103 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The square root of 212486464 is about 14576.9154487498. The cubic root of 212486464 is about 596.7289251154.

It can be divided in two parts, 2124 and 86464, that added together give a palindrome (88588).

The spelling of 212486464 in words is "two hundred twelve million, four hundred eighty-six thousand, four hundred sixty-four".