220438619 has 2 divisors, whose sum is σ = 220438620. Its totient is φ = 220438618.

The previous prime is 220438583. The next prime is 220438649. The reversal of 220438619 is 916834022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220438619 - 2⁸ = 220438363 is a prime.

It is a super-2 number, since 2×220438619² = 97186369493254322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220438649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110219309 + 110219310.

It is an arithmetic number, because the mean of its divisors is an integer number (110219310).

Almost surely, 2^220438619 is an apocalyptic number.

220438619 is a deficient number, since it is larger than the sum of its proper divisors (1).

220438619 is an equidigital number, since it uses as much as digits as its factorization.

220438619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 220438619 is about 14847.1754552844. The cubic root of 220438619 is about 604.0819982458.

The spelling of 220438619 in words is "two hundred twenty million, four hundred thirty-eight thousand, six hundred nineteen".