222000440 has 16 divisors (see below), whose sum is σ = 499501080. Its totient is φ = 88800160.

The previous prime is 222000437. The next prime is 222000461. The reversal of 222000440 is 44000222.

It is a happy number.

It is a super-3 number, since 3×222000440³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2774966 + ... + 2775045.

Almost surely, 2^222000440 is an apocalyptic number.

222000440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222000440 is an abundant number, since it is smaller than the sum of its proper divisors (277500640).

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

222000440 is a wasteful number, since it uses less digits than its factorization.

222000440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550022 (or 5550018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 222000440 is about 14899.6791911772. The cubic root of 222000440 is about 605.5052946841.

Adding to 222000440 its reverse (44000222), we get a palindrome (266000662).

The spelling of 222000440 in words is "two hundred twenty-two million, four hundred forty", and thus it is an aban number.