20222342 has 16 divisors (see below), whose sum is σ = 35185920. Its totient is φ = 8536968.

The previous prime is 20222329. The next prime is 20222351. The reversal of 20222342 is 24322202.

It is a self number, because there is not a number n which added to its sum of digits gives 20222342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9842 + ... + 11717.

It is an arithmetic number, because the mean of its divisors is an integer number (2199120).

Almost surely, 2^20222342 is an apocalyptic number.

20222342 is a deficient number, since it is larger than the sum of its proper divisors (14963578).

20222342 is a wasteful number, since it uses less digits than its factorization.

20222342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21635.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20222342 is about 4496.9258388370. The cubic root of 20222342 is about 272.4439387521.

Adding to 20222342 its reverse (24322202), we get a palindrome (44544544).

The spelling of 20222342 in words is "twenty million, two hundred twenty-two thousand, three hundred forty-two".