22423522 has 8 divisors (see below), whose sum is σ = 36693072. Its totient is φ = 10192500.

The previous prime is 22423469. The next prime is 22423537. The reversal of 22423522 is 22532422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1019251 = 22423522 / (2 + 2 + 4 + 2 + 3 + 5 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 22423493 and 22423502.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 509604 + ... + 509647.

It is an arithmetic number, because the mean of its divisors is an integer number (4586634).

Almost surely, 2^22423522 is an apocalyptic number.

22423522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22423522 is a deficient number, since it is larger than the sum of its proper divisors (14269550).

22423522 is a wasteful number, since it uses less digits than its factorization.

22423522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019264.

The product of its digits is 1920, while the sum is 22.

The square root of 22423522 is about 4735.3481392607. The cubic root of 22423522 is about 281.9905853370.

Adding to 22423522 its reverse (22532422), we get a palindrome (44955944).

Subtracting 22423522 from its reverse (22532422), we obtain a square (108900 = 330²).

The spelling of 22423522 in words is "twenty-two million, four hundred twenty-three thousand, five hundred twenty-two".