213860022 has 32 divisors (see below), whose sum is σ = 436043520. Its totient is φ = 69906720.

The previous prime is 213860021. The next prime is 213860069. The reversal of 213860022 is 220068312.

It is a super-2 number, since 2×213860022² = 91472218019680968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213859974 and 213860001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213860021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161479 + ... + 162797.

It is an arithmetic number, because the mean of its divisors is an integer number (13626360).

Almost surely, 2^213860022 is an apocalyptic number.

213860022 is an abundant number, since it is smaller than the sum of its proper divisors (222183498).

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

213860022 is a wasteful number, since it uses less digits than its factorization.

213860022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828.

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

The square root of 213860022 is about 14623.9537061630. The cubic root of 213860022 is about 598.0119589858.

The spelling of 213860022 in words is "two hundred thirteen million, eight hundred sixty thousand, twenty-two".