22419425 has 12 divisors (see below), whose sum is σ = 31771776. Its totient is φ = 15373200.

The previous prime is 22419421. The next prime is 22419427. The reversal of 22419425 is 52491422.

It is not a de Polignac number, because 22419425 - 2² = 22419421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22419421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63881 + ... + 64230.

It is an arithmetic number, because the mean of its divisors is an integer number (2647648).

Almost surely, 2^22419425 is an apocalyptic number.

22419425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22419425 is a deficient number, since it is larger than the sum of its proper divisors (9352351).

22419425 is a wasteful number, since it uses less digits than its factorization.

22419425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128128 (or 128123 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 22419425 is about 4734.9155219497. The cubic root of 22419425 is about 281.9734101314.

The spelling of 22419425 in words is "twenty-two million, four hundred nineteen thousand, four hundred twenty-five".