222200040 has 32 divisors (see below), whose sum is σ = 666600480. Its totient is φ = 59253312.

The previous prime is 222200029. The next prime is 222200053. The reversal of 222200040 is 40002222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 222199989 and 222200025.

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, 925714 + ... + 925953.

It is an arithmetic number, because the mean of its divisors is an integer number (20831265).

Almost surely, 2^222200040 is an apocalyptic number.

222200040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222200040 is an abundant number, since it is smaller than the sum of its proper divisors (444400440).

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

222200040 is a wasteful number, since it uses less digits than its factorization.

222200040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851681 (or 1851677 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 222200040 is about 14906.3758170791. The cubic root of 222200040 is about 605.6867097204.

Adding to 222200040 its reverse (40002222), we get a palindrome (262202262).

The spelling of 222200040 in words is "two hundred twenty-two million, two hundred thousand, forty".