220405199 has 4 divisors (see below), whose sum is σ = 251891664. Its totient is φ = 188918736.

The previous prime is 220405193. The next prime is 220405219. The reversal of 220405199 is 991504022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220405199 - 2⁴ = 220405183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220405193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15743222 + ... + 15743235.

It is an arithmetic number, because the mean of its divisors is an integer number (62972916).

Almost surely, 2^220405199 is an apocalyptic number.

220405199 is a deficient number, since it is larger than the sum of its proper divisors (31486465).

220405199 is an equidigital number, since it uses as much as digits as its factorization.

220405199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31486464.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 220405199 is about 14846.0499460294. The cubic root of 220405199 is about 604.0514690508.

The spelling of 220405199 in words is "two hundred twenty million, four hundred five thousand, one hundred ninety-nine".