220673720 has 32 divisors (see below), whose sum is σ = 502102800. Its totient is φ = 87276288.

The previous prime is 220673701. The next prime is 220673729. The reversal of 220673720 is 27376022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220673729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27434 + ... + 34553.

Almost surely, 2^220673720 is an apocalyptic number.

220673720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220673720 is an abundant number, since it is smaller than the sum of its proper divisors (281429080).

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

220673720 is a wasteful number, since it uses less digits than its factorization.

220673720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62087 (or 62083 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 220673720 is about 14855.0907099216. The cubic root of 220673720 is about 604.2966760300.

The spelling of 220673720 in words is "two hundred twenty million, six hundred seventy-three thousand, seven hundred twenty".