22223642 has 32 divisors (see below), whose sum is σ = 39533184. Its totient is φ = 9172800.

The previous prime is 22223633. The next prime is 22223651. The reversal of 22223642 is 24632222.

It is an interprime number because it is at equal distance from previous prime (22223633) and next prime (22223651).

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, 45017 + ... + 45507.

It is an arithmetic number, because the mean of its divisors is an integer number (1235412).

Almost surely, 2^22223642 is an apocalyptic number.

22223642 is a deficient number, since it is larger than the sum of its proper divisors (17309542).

22223642 is a wasteful number, since it uses less digits than its factorization.

22223642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614.

The product of its digits is 2304, while the sum is 23.

The square root of 22223642 is about 4714.1957956793. The cubic root of 22223642 is about 281.1502090745.

Adding to 22223642 its reverse (24632222), we get a palindrome (46855864).

The spelling of 22223642 in words is "twenty-two million, two hundred twenty-three thousand, six hundred forty-two".