22788429 has 16 divisors (see below), whose sum is σ = 32095680. Its totient is φ = 14342400.

The previous prime is 22788427. The next prime is 22788431. The reversal of 22788429 is 92488722.

It is an interprime number because it is at equal distance from previous prime (22788427) and next prime (22788431).

It is not a de Polignac number, because 22788429 - 2¹ = 22788427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22788421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22359 + ... + 23355.

It is an arithmetic number, because the mean of its divisors is an integer number (2005980).

Almost surely, 2^22788429 is an apocalyptic number.

It is an amenable number.

22788429 is a deficient number, since it is larger than the sum of its proper divisors (9307251).

22788429 is a wasteful number, since it uses less digits than its factorization.

22788429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420.

The product of its digits is 129024, while the sum is 42.

The square root of 22788429 is about 4773.7227611163. The cubic root of 22788429 is about 283.5120107886.

The spelling of 22788429 in words is "twenty-two million, seven hundred eighty-eight thousand, four hundred twenty-nine".