220545044 has 6 divisors (see below), whose sum is σ = 385953834. Its totient is φ = 110272520.

The previous prime is 220545023. The next prime is 220545079. The reversal of 220545044 is 440545022.

It can be written as a sum of positive squares in only one way, i.e., 111091600 + 109453444 = 10540^2 + 10462^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27568127 + ... + 27568134.

It is an arithmetic number, because the mean of its divisors is an integer number (64325639).

Almost surely, 2^220545044 is an apocalyptic number.

It is an amenable number.

220545044 is a deficient number, since it is larger than the sum of its proper divisors (165408790).

220545044 is a wasteful number, since it uses less digits than its factorization.

220545044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55136265 (or 55136263 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 220545044 is about 14850.7590378405. The cubic root of 220545044 is about 604.1791970090.

The spelling of 220545044 in words is "two hundred twenty million, five hundred forty-five thousand, forty-four".