222450140 has 24 divisors (see below), whose sum is σ = 509613552. Its totient is φ = 80890880.

The previous prime is 222450139. The next prime is 222450161. The reversal of 222450140 is 41054222.

It is a happy number.

222450140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505349 + ... + 505788.

It is an arithmetic number, because the mean of its divisors is an integer number (21233898).

Almost surely, 2^222450140 is an apocalyptic number.

222450140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222450140 is an abundant number, since it is smaller than the sum of its proper divisors (287163412).

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

222450140 is a wasteful number, since it uses less digits than its factorization.

222450140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011157 (or 1011155 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 222450140 is about 14914.7624855376. The cubic root of 222450140 is about 605.9138705666.

The spelling of 222450140 in words is "two hundred twenty-two million, four hundred fifty thousand, one hundred forty".