222756140 has 24 divisors (see below), whose sum is σ = 475459152. Its totient is φ = 87641280.

The previous prime is 222756137. The next prime is 222756167. The reversal of 222756140 is 41657222.

It is a happy 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, 90074 + ... + 92513.

It is an arithmetic number, because the mean of its divisors is an integer number (19810798).

Almost surely, 2^222756140 is an apocalyptic number.

222756140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222756140 is an abundant number, since it is smaller than the sum of its proper divisors (252703012).

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

222756140 is a wasteful number, since it uses less digits than its factorization.

222756140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182657 (or 182655 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 222756140 is about 14925.0172529214. The cubic root of 222756140 is about 606.1915727871.

The spelling of 222756140 in words is "two hundred twenty-two million, seven hundred fifty-six thousand, one hundred forty".