220044745 has 16 divisors (see below), whose sum is σ = 271216512. Its totient is φ = 171283840.

The previous prime is 220044743. The next prime is 220044823. The reversal of 220044745 is 547440022.

It is a happy number.

It is not a de Polignac number, because 220044745 - 2¹ = 220044743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220044743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89604 + ... + 92026.

It is an arithmetic number, because the mean of its divisors is an integer number (16951032).

Almost surely, 2^220044745 is an apocalyptic number.

It is an amenable number.

220044745 is a deficient number, since it is larger than the sum of its proper divisors (51171767).

220044745 is a wasteful number, since it uses less digits than its factorization.

220044745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 220044745 is about 14833.9052511468. The cubic root of 220044745 is about 603.7219977382.

Adding to 220044745 its reverse (547440022), we get a palindrome (767484767).

The spelling of 220044745 in words is "two hundred twenty million, forty-four thousand, seven hundred forty-five".