222143280 has 40 divisors (see below), whose sum is σ = 688644912. Its totient is φ = 59238144.

The previous prime is 222143249. The next prime is 222143281. The reversal of 222143280 is 82341222.

222143280 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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 222143280.

It is not an unprimeable number, because it can be changed into a prime (222143281) 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, 462559 + ... + 463038.

Almost surely, 2^222143280 is an apocalyptic number.

222143280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222143280 is an abundant number, since it is smaller than the sum of its proper divisors (466501632).

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

222143280 is a wasteful number, since it uses less digits than its factorization.

222143280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925613 (or 925607 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 222143280 is about 14904.4718121777. The cubic root of 222143280 is about 605.6351320138.

The spelling of 222143280 in words is "two hundred twenty-two million, one hundred forty-three thousand, two hundred eighty".