212683520 has 108 divisors (see below), whose sum is σ = 592792704. Its totient is φ = 72898560.

The previous prime is 212683517. The next prime is 212683531. The reversal of 212683520 is 25386212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61025 + ... + 64415.

Almost surely, 2^212683520 is an apocalyptic number.

212683520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212683520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296396352).

212683520 is an abundant number, since it is smaller than the sum of its proper divisors (380109184).

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

212683520 is an equidigital number, since it uses as much as digits as its factorization.

212683520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3405 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 212683520 is about 14583.6730627095. The cubic root of 212683520 is about 596.9133332288.

The spelling of 212683520 in words is "two hundred twelve million, six hundred eighty-three thousand, five hundred twenty".