213062820 has 48 divisors (see below), whose sum is σ = 601294848. Its totient is φ = 56367360.

The previous prime is 213062791. The next prime is 213062831. The reversal of 213062820 is 28260312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6361 + ... + 21600.

It is an arithmetic number, because the mean of its divisors is an integer number (12526976).

Almost surely, 2^213062820 is an apocalyptic number.

213062820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213062820 is an abundant number, since it is smaller than the sum of its proper divisors (388232028).

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

213062820 is a wasteful number, since it uses less digits than its factorization.

213062820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28100 (or 28098 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 213062820 is about 14596.6715384022. The cubic root of 213062820 is about 597.2679677701.

The spelling of 213062820 in words is "two hundred thirteen million, sixty-two thousand, eight hundred twenty".