222859428 has 24 divisors (see below), whose sum is σ = 567278880. Its totient is φ = 67533120.

The previous prime is 222859423. The next prime is 222859433. The reversal of 222859428 is 824958222.

It is an interprime number because it is at equal distance from previous prime (222859423) and next prime (222859433).

It is a self number, because there is not a number n which added to its sum of digits gives 222859428.

It is not an unprimeable number, because it can be changed into a prime (222859423) 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, 844033 + ... + 844296.

It is an arithmetic number, because the mean of its divisors is an integer number (23636620).

Almost surely, 2^222859428 is an apocalyptic number.

It is an amenable number.

222859428 is an abundant number, since it is smaller than the sum of its proper divisors (344419452).

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

222859428 is a wasteful number, since it uses less digits than its factorization.

222859428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688347 (or 1688345 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 222859428 is about 14928.4770824086. The cubic root of 222859428 is about 606.2852516718.

It can be divided in two parts, 22285 and 9428, that added together give a palindrome (31713).

The spelling of 222859428 in words is "two hundred twenty-two million, eight hundred fifty-nine thousand, four hundred twenty-eight".