220400044 has 6 divisors (see below), whose sum is σ = 385700084. Its totient is φ = 110200020.

The previous prime is 220400041. The next prime is 220400077. The reversal of 220400044 is 440004022.

It is not an unprimeable number, because it can be changed into a prime (220400041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550002 + ... + 27550009.

Almost surely, 2^220400044 is an apocalyptic number.

It is an amenable number.

220400044 is a deficient number, since it is larger than the sum of its proper divisors (165300040).

220400044 is a wasteful number, since it uses less digits than its factorization.

220400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55100015 (or 55100013 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 220400044 is about 14845.8763298096. The cubic root of 220400044 is about 604.0467596798.

Adding to 220400044 its reverse (440004022), we get a palindrome (660404066).

The spelling of 220400044 in words is "two hundred twenty million, four hundred thousand, forty-four".