212878352 has 20 divisors (see below), whose sum is σ = 436714236. Its totient is φ = 100177920.

The previous prime is 212878343. The next prime is 212878381. The reversal of 212878352 is 253878212.

It can be written as a sum of positive squares in 2 ways, for example, as 186704896 + 26173456 = 13664^2 + 5116^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391049 + ... + 391592.

Almost surely, 2^212878352 is an apocalyptic number.

It is an amenable number.

212878352 is an abundant number, since it is smaller than the sum of its proper divisors (223835884).

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

212878352 is a wasteful number, since it uses less digits than its factorization.

212878352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782666 (or 782660 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 212878352 is about 14590.3513323018. The cubic root of 212878352 is about 597.0955481374.

The spelling of 212878352 in words is "two hundred twelve million, eight hundred seventy-eight thousand, three hundred fifty-two".