220772544 has 28 divisors (see below), whose sum is σ = 584127864. Its totient is φ = 73590784.

The previous prime is 220772543. The next prime is 220772549. The reversal of 220772544 is 445277022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220772543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574737 + ... + 575120.

Almost surely, 2^220772544 is an apocalyptic number.

220772544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220772544 is an abundant number, since it is smaller than the sum of its proper divisors (363355320).

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

220772544 is a wasteful number, since it uses less digits than its factorization.

220772544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149872 (or 1149862 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 220772544 is about 14858.4166047396. The cubic root of 220772544 is about 604.3868696762.

The spelling of 220772544 in words is "two hundred twenty million, seven hundred seventy-two thousand, five hundred forty-four".