222623474 has 4 divisors (see below), whose sum is σ = 333935214. Its totient is φ = 111311736.

The previous prime is 222623473. The next prime is 222623477. The reversal of 222623474 is 474326222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194797849 + 27825625 = 13957^2 + 5275^2 .

It is a super-2 number, since 2×222623474² = 99122422351657352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222623474.

It is not an unprimeable number, because it can be changed into a prime (222623473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655867 + ... + 55655870.

Almost surely, 2^222623474 is an apocalyptic number.

222623474 is a deficient number, since it is larger than the sum of its proper divisors (111311740).

222623474 is a wasteful number, since it uses less digits than its factorization.

222623474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111311739.

The product of its digits is 32256, while the sum is 32.

The square root of 222623474 is about 14920.5721740153. The cubic root of 222623474 is about 606.0712065100.

Adding to 222623474 its reverse (474326222), we get a palindrome (696949696).

The spelling of 222623474 in words is "two hundred twenty-two million, six hundred twenty-three thousand, four hundred seventy-four".