212268276 has 72 divisors (see below), whose sum is σ = 607055904. Its totient is φ = 64320480.

The previous prime is 212268269. The next prime is 212268283. The reversal of 212268276 is 672862212.

It is an interprime number because it is at equal distance from previous prime (212268269) and next prime (212268283).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 212268276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 766 + ... + 20618.

It is an arithmetic number, because the mean of its divisors is an integer number (8431332).

Almost surely, 2^212268276 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 212268276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303527952).

212268276 is an abundant number, since it is smaller than the sum of its proper divisors (394787628).

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

212268276 is a wasteful number, since it uses less digits than its factorization.

212268276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19883 (or 19869 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 212268276 is about 14569.4295015282. The cubic root of 212268276 is about 596.5246082883.

The spelling of 212268276 in words is "two hundred twelve million, two hundred sixty-eight thousand, two hundred seventy-six".