212357952 has 84 divisors (see below), whose sum is σ = 629724420. Its totient is φ = 68339712.

The previous prime is 212357939. The next prime is 212357963. The reversal of 212357952 is 259753212.

212357952 is a `hidden beast` number, since 212 + 357 + 95 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 164249856 + 48108096 = 12816^2 + 6936^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10348 + ... + 23060.

Almost surely, 2^212357952 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 212357952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314862210).

212357952 is an abundant number, since it is smaller than the sum of its proper divisors (417366468).

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

212357952 is a wasteful number, since it uses less digits than its factorization.

212357952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12760 (or 12747 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 212357952 is about 14572.5067164164. The cubic root of 212357952 is about 596.6086001287.

The spelling of 212357952 in words is "two hundred twelve million, three hundred fifty-seven thousand, nine hundred fifty-two".