222865340 has 24 divisors (see below), whose sum is σ = 479434032. Its totient is φ = 86971520.

The previous prime is 222865339. The next prime is 222865343. The reversal of 222865340 is 43568222.

It is a junction number, because it is equal to n+sod(n) for n = 222865297 and 222865306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222865343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135074 + ... + 136713.

It is an arithmetic number, because the mean of its divisors is an integer number (19976418).

Almost surely, 2^222865340 is an apocalyptic number.

222865340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222865340 is an abundant number, since it is smaller than the sum of its proper divisors (256568692).

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

222865340 is a wasteful number, since it uses less digits than its factorization.

222865340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271837 (or 271835 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 222865340 is about 14928.6750919162. The cubic root of 222865340 is about 606.2906127893.

The spelling of 222865340 in words is "two hundred twenty-two million, eight hundred sixty-five thousand, three hundred forty".