212552380 has 12 divisors (see below), whose sum is σ = 446360040. Its totient is φ = 85020944.

The previous prime is 212552363. The next prime is 212552401. The reversal of 212552380 is 83255212.

It is a congruent number.

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, 5313790 + ... + 5313829.

It is an arithmetic number, because the mean of its divisors is an integer number (37196670).

Almost surely, 2^212552380 is an apocalyptic number.

212552380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212552380 is an abundant number, since it is smaller than the sum of its proper divisors (233807660).

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

212552380 is a wasteful number, since it uses less digits than its factorization.

212552380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10627628 (or 10627626 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 212552380 is about 14579.1762455908. The cubic root of 212552380 is about 596.7906230333.

The spelling of 212552380 in words is "two hundred twelve million, five hundred fifty-two thousand, three hundred eighty".