22429925 has 24 divisors (see below), whose sum is σ = 32277696. Its totient is φ = 15143040.

The previous prime is 22429909. The next prime is 22429931. The reversal of 22429925 is 52992422.

It is a happy number.

It is not a de Polignac number, because 22429925 - 2⁴ = 22429909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10769 + ... + 12681.

It is an arithmetic number, because the mean of its divisors is an integer number (1344904).

Almost surely, 2^22429925 is an apocalyptic number.

22429925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22429925 is a deficient number, since it is larger than the sum of its proper divisors (9847771).

22429925 is a wasteful number, since it uses less digits than its factorization.

22429925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997 (or 1992 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 22429925 is about 4736.0241764586. The cubic root of 22429925 is about 282.0174234326.

It can be divided in two parts, 2242 and 9925, that added together give a cube (12167 = 23³).

The spelling of 22429925 in words is "twenty-two million, four hundred twenty-nine thousand, nine hundred twenty-five".