220275144 has 24 divisors (see below), whose sum is σ = 596578710. Its totient is φ = 73425024.

The previous prime is 220275131. The next prime is 220275149. The reversal of 220275144 is 441572022.

It can be written as a sum of positive squares in only one way, i.e., 220166244 + 108900 = 14838^2 + 330^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×220275144² = 97042278128441472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220275149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1529617 + ... + 1529760.

Almost surely, 2^220275144 is an apocalyptic number.

220275144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220275144 is an abundant number, since it is smaller than the sum of its proper divisors (376303566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220275144 is a wasteful number, since it uses less digits than its factorization.

220275144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059389 (or 3059382 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 220275144 is about 14841.6691783640. The cubic root of 220275144 is about 603.9326343300.

The spelling of 220275144 in words is "two hundred twenty million, two hundred seventy-five thousand, one hundred forty-four".