222423739 has 2 divisors, whose sum is σ = 222423740. Its totient is φ = 222423738.

The previous prime is 222423713. The next prime is 222423743. The reversal of 222423739 is 937324222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222423739 - 2¹¹ = 222421691 is a prime.

It is not a weakly prime, because it can be changed into another prime (222423749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111211869 + 111211870.

It is an arithmetic number, because the mean of its divisors is an integer number (111211870).

Almost surely, 2^222423739 is an apocalyptic number.

222423739 is a deficient number, since it is larger than the sum of its proper divisors (1).

222423739 is an equidigital number, since it uses as much as digits as its factorization.

222423739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 34.

The square root of 222423739 is about 14913.8773965726. The cubic root of 222423739 is about 605.8898991050.

The spelling of 222423739 in words is "two hundred twenty-two million, four hundred twenty-three thousand, seven hundred thirty-nine".