222281438 has 16 divisors (see below), whose sum is σ = 344643120. Its totient is φ = 107462400.

The previous prime is 222281429. The next prime is 222281447. The reversal of 222281438 is 834182222.

It is an interprime number because it is at equal distance from previous prime (222281429) and next prime (222281447).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8243 + ... + 22638.

It is an arithmetic number, because the mean of its divisors is an integer number (21540195).

Almost surely, 2^222281438 is an apocalyptic number.

222281438 is a deficient number, since it is larger than the sum of its proper divisors (122361682).

222281438 is a wasteful number, since it uses less digits than its factorization.

222281438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31003.

The product of its digits is 12288, while the sum is 32.

The square root of 222281438 is about 14909.1058752697. The cubic root of 222281438 is about 605.7606606039.

The spelling of 222281438 in words is "two hundred twenty-two million, two hundred eighty-one thousand, four hundred thirty-eight".