220940272 has 40 divisors (see below), whose sum is σ = 496543616. Its totient is φ = 93272256.

The previous prime is 220940263. The next prime is 220940281. The reversal of 220940272 is 272049022.

It is an interprime number because it is at equal distance from previous prime (220940263) and next prime (220940281).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 220940272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7218 + ... + 22225.

Almost surely, 2^220940272 is an apocalyptic number.

It is an amenable number.

220940272 is an abundant number, since it is smaller than the sum of its proper divisors (275603344).

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

220940272 is a wasteful number, since it uses less digits than its factorization.

220940272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29525 (or 29519 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 220940272 is about 14864.0597415376. The cubic root of 220940272 is about 604.5398883108.

Adding to 220940272 its reverse (272049022), we get a palindrome (492989294).

The spelling of 220940272 in words is "two hundred twenty million, nine hundred forty thousand, two hundred seventy-two".