212973880 has 32 divisors (see below), whose sum is σ = 547647840. Its totient is φ = 73019520.

The previous prime is 212973853. The next prime is 212973913. The reversal of 212973880 is 88379212.

212973880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380031 + ... + 380590.

It is an arithmetic number, because the mean of its divisors is an integer number (17113995).

Almost surely, 2^212973880 is an apocalyptic number.

212973880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212973880 is an abundant number, since it is smaller than the sum of its proper divisors (334673960).

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

212973880 is a wasteful number, since it uses less digits than its factorization.

212973880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760639 (or 760635 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 212973880 is about 14593.6246354358. The cubic root of 212973880 is about 597.1848492384.

The spelling of 212973880 in words is "two hundred twelve million, nine hundred seventy-three thousand, eight hundred eighty".