222846440 has 64 divisors (see below), whose sum is σ = 546048000. Its totient is φ = 81527040.

The previous prime is 222846431. The next prime is 222846457. The reversal of 222846440 is 44648222.

222846440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 222846397 and 222846406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16985 + ... + 27095.

It is an arithmetic number, because the mean of its divisors is an integer number (8532000).

Almost surely, 2^222846440 is an apocalyptic number.

222846440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222846440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273024000).

222846440 is an abundant number, since it is smaller than the sum of its proper divisors (323201560).

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

222846440 is a wasteful number, since it uses less digits than its factorization.

222846440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10170 (or 10166 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 222846440 is about 14928.0420685367. The cubic root of 222846440 is about 606.2734735659.

The spelling of 222846440 in words is "two hundred twenty-two million, eight hundred forty-six thousand, four hundred forty".