220438190 has 64 divisors (see below), whose sum is σ = 482112000. Its totient is φ = 70886016.

The previous prime is 220438189. The next prime is 220438213. The reversal of 220438190 is 91834022.

It is a super-2 number, since 2×220438190² = 97185991220952200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141536 + ... + 143084.

It is an arithmetic number, because the mean of its divisors is an integer number (7533000).

Almost surely, 2^220438190 is an apocalyptic number.

220438190 is an abundant number, since it is smaller than the sum of its proper divisors (261673810).

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

220438190 is a wasteful number, since it uses less digits than its factorization.

220438190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 220438190 is about 14847.1610080850. The cubic root of 220438190 is about 604.0816063735.

The spelling of 220438190 in words is "two hundred twenty million, four hundred thirty-eight thousand, one hundred ninety".