212464454 has 8 divisors (see below), whose sum is σ = 319021248. Its totient is φ = 106124040.

The previous prime is 212464451. The next prime is 212464459. The reversal of 212464454 is 454464212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212464454² = 90282288427036232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212464454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212464451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51617 + ... + 55580.

It is an arithmetic number, because the mean of its divisors is an integer number (39877656).

Almost surely, 2^212464454 is an apocalyptic number.

212464454 is a deficient number, since it is larger than the sum of its proper divisors (106556794).

212464454 is a wasteful number, since it uses less digits than its factorization.

212464454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108190.

The product of its digits is 30720, while the sum is 32.

The square root of 212464454 is about 14576.1604683812. The cubic root of 212464454 is about 596.7083207329.

The spelling of 212464454 in words is "two hundred twelve million, four hundred sixty-four thousand, four hundred fifty-four".