22788057 has 4 divisors (see below), whose sum is σ = 30384080. Its totient is φ = 15192036.

The previous prime is 22788037. The next prime is 22788061. The reversal of 22788057 is 75088722.

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 not a de Polignac number, because 22788057 - 2⁶ = 22787993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22788037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3798007 + ... + 3798012.

It is an arithmetic number, because the mean of its divisors is an integer number (7596020).

Almost surely, 2^22788057 is an apocalyptic number.

It is an amenable number.

22788057 is a deficient number, since it is larger than the sum of its proper divisors (7596023).

22788057 is an equidigital number, since it uses as much as digits as its factorization.

22788057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7596022.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 22788057 is about 4773.6837976556. The cubic root of 22788057 is about 283.5104680898.

The spelling of 22788057 in words is "twenty-two million, seven hundred eighty-eight thousand, fifty-seven".