222631442 has 16 divisors (see below), whose sum is σ = 374153472. Its totient is φ = 98460720.

The previous prime is 222631399. The next prime is 222631457. The reversal of 222631442 is 244136222.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135938 + ... + 137565.

It is an arithmetic number, because the mean of its divisors is an integer number (23384592).

Almost surely, 2^222631442 is an apocalyptic number.

222631442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222631442 is a deficient number, since it is larger than the sum of its proper divisors (151522030).

222631442 is a wasteful number, since it uses less digits than its factorization.

222631442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273553.

The product of its digits is 4608, while the sum is 26.

The square root of 222631442 is about 14920.8391855150. The cubic root of 222631442 is about 606.0784371308.

Adding to 222631442 its reverse (244136222), we get a palindrome (466767664).

The spelling of 222631442 in words is "two hundred twenty-two million, six hundred thirty-one thousand, four hundred forty-two".