20922242 has 16 divisors (see below), whose sum is σ = 35163072. Its totient is φ = 9252720.

The previous prime is 20922199. The next prime is 20922269. The reversal of 20922242 is 24222902.

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, 12038 + ... + 13665.

It is an arithmetic number, because the mean of its divisors is an integer number (2197692).

Almost surely, 2^20922242 is an apocalyptic number.

20922242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20922242 is a deficient number, since it is larger than the sum of its proper divisors (14240830).

20922242 is a wasteful number, since it uses less digits than its factorization.

20922242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25753.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20922242 is about 4574.0837333831. The cubic root of 20922242 is about 275.5514751703.

It can be divided in two parts, 2092 and 2242, that added together give a palindrome (4334).

The spelling of 20922242 in words is "twenty million, nine hundred twenty-two thousand, two hundred forty-two".