222423705 has 32 divisors (see below), whose sum is σ = 451910400. Its totient is φ = 101678976.

The previous prime is 222423689. The next prime is 222423713. The reversal of 222423705 is 507324222.

222423705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222423705 - 2⁴ = 222423689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116740 + ... + 118629.

It is an arithmetic number, because the mean of its divisors is an integer number (14122200).

Almost surely, 2^222423705 is an apocalyptic number.

It is an amenable number.

222423705 is an abundant number, since it is smaller than the sum of its proper divisors (229486695).

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

222423705 is a wasteful number, since it uses less digits than its factorization.

222423705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235390 (or 235384 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 222423705 is about 14913.8762566946. The cubic root of 222423705 is about 605.8898682326.

Adding to 222423705 its reverse (507324222), we get a palindrome (729747927).

The spelling of 222423705 in words is "two hundred twenty-two million, four hundred twenty-three thousand, seven hundred five".