222672720 has 40 divisors (see below), whose sum is σ = 690286176. Its totient is φ = 59379328.

The previous prime is 222672689. The next prime is 222672743. The reversal of 222672720 is 27276222.

222672720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 463662 + ... + 464141.

Almost surely, 2^222672720 is an apocalyptic number.

222672720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222672720 is an abundant number, since it is smaller than the sum of its proper divisors (467613456).

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

222672720 is a wasteful number, since it uses less digits than its factorization.

222672720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927819 (or 927813 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 222672720 is about 14922.2223545958. Note that the first 3 decimals coincide. The cubic root of 222672720 is about 606.1158923969.

The spelling of 222672720 in words is "two hundred twenty-two million, six hundred seventy-two thousand, seven hundred twenty".