22039957 has 4 divisors (see below), whose sum is σ = 22998240. Its totient is φ = 21081676.

The previous prime is 22039937. The next prime is 22039991. The reversal of 22039957 is 75993022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22039957 - 2¹¹ = 22037909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22039907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479107 + ... + 479152.

It is an arithmetic number, because the mean of its divisors is an integer number (5749560).

Almost surely, 2^22039957 is an apocalyptic number.

It is an amenable number.

22039957 is a deficient number, since it is larger than the sum of its proper divisors (958283).

22039957 is an equidigital number, since it uses as much as digits as its factorization.

22039957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958282.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 22039957 is about 4694.6732580660. The cubic root of 22039957 is about 280.3734684770.

The spelling of 22039957 in words is "twenty-two million, thirty-nine thousand, nine hundred fifty-seven".