212913456 has 80 divisors (see below), whose sum is σ = 648910848. Its totient is φ = 58867200.

The previous prime is 212913443. The next prime is 212913469. The reversal of 212913456 is 654319212.

It is an interprime number because it is at equal distance from previous prime (212913443) and next prime (212913469).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196 + ... + 20636.

Almost surely, 2^212913456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212913456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324455424).

212913456 is an abundant number, since it is smaller than the sum of its proper divisors (435997392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212913456 is a wasteful number, since it uses less digits than its factorization.

212913456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20490 (or 20484 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 212913456 is about 14591.5542695081. The cubic root of 212913456 is about 597.1283670218.

The spelling of 212913456 in words is "two hundred twelve million, nine hundred thirteen thousand, four hundred fifty-six".