222162340 has 24 divisors (see below), whose sum is σ = 466821432. Its totient is φ = 88811520.

The previous prime is 222162329. The next prime is 222162361. The reversal of 222162340 is 43261222.

It can be written as a sum of positive squares in 4 ways, for example, as 82591744 + 139570596 = 9088^2 + 11814^2 .

It is a super-2 number, since 2×222162340² = 98712210628551200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60970 + ... + 64510.

It is an arithmetic number, because the mean of its divisors is an integer number (19450893).

Almost surely, 2^222162340 is an apocalyptic number.

222162340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222162340 is an abundant number, since it is smaller than the sum of its proper divisors (244659092).

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

222162340 is a wasteful number, since it uses less digits than its factorization.

222162340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687 (or 6685 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 222162340 is about 14905.1112038790. Note that the first 3 decimals coincide. The cubic root of 222162340 is about 605.6524527801.

The spelling of 222162340 in words is "two hundred twenty-two million, one hundred sixty-two thousand, three hundred forty".