222742254 has 32 divisors (see below), whose sum is σ = 525551616. Its totient is φ = 61587360.

The previous prime is 222742241. The next prime is 222742283. The reversal of 222742254 is 452247222.

It is a super-2 number, since 2×222742254² = 99228223434001032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84237 + ... + 86840.

It is an arithmetic number, because the mean of its divisors is an integer number (16423488).

Almost surely, 2^222742254 is an apocalyptic number.

222742254 is an abundant number, since it is smaller than the sum of its proper divisors (302809362).

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

222742254 is a wasteful number, since it uses less digits than its factorization.

222742254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171120.

The product of its digits is 17920, while the sum is 30.

The square root of 222742254 is about 14924.5520535794. The cubic root of 222742254 is about 606.1789764249.

Adding to 222742254 its reverse (452247222), we get a palindrome (674989476).

The spelling of 222742254 in words is "two hundred twenty-two million, seven hundred forty-two thousand, two hundred fifty-four".