220390619 has 4 divisors (see below), whose sum is σ = 220641096. Its totient is φ = 220140144.

The previous prime is 220390613. The next prime is 220390627. The reversal of 220390619 is 916093022.

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 220390619 - 2²⁰ = 219342043 is a prime.

It is a super-2 number, since 2×220390619² = 97144049886406322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220390613) 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, 123914 + ... + 125679.

It is an arithmetic number, because the mean of its divisors is an integer number (55160274).

Almost surely, 2^220390619 is an apocalyptic number.

220390619 is a deficient number, since it is larger than the sum of its proper divisors (250477).

220390619 is an equidigital number, since it uses as much as digits as its factorization.

220390619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250476.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 220390619 is about 14845.5588982025. The cubic root of 220390619 is about 604.0381492431.

The spelling of 220390619 in words is "two hundred twenty million, three hundred ninety thousand, six hundred nineteen".