220738844 has 6 divisors (see below), whose sum is σ = 386292984. Its totient is φ = 110369420.

The previous prime is 220738801. The next prime is 220738849. The reversal of 220738844 is 448837022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220738798 and 220738807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220738849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27592352 + ... + 27592359.

It is an arithmetic number, because the mean of its divisors is an integer number (64382164).

Almost surely, 2^220738844 is an apocalyptic number.

It is an amenable number.

220738844 is a deficient number, since it is larger than the sum of its proper divisors (165554140).

220738844 is a wasteful number, since it uses less digits than its factorization.

220738844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55184715 (or 55184713 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 220738844 is about 14857.2825240688. The cubic root of 220738844 is about 604.3561157404.

The spelling of 220738844 in words is "two hundred twenty million, seven hundred thirty-eight thousand, eight hundred forty-four".