22423401 has 96 divisors (see below), whose sum is σ = 46126080. Its totient is φ = 10108800.

The previous prime is 22423397. The next prime is 22423403. The reversal of 22423401 is 10432422.

It is not a de Polignac number, because 22423401 - 2² = 22423397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22423403) 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 95 ways as a sum of consecutive naturals, for example, 171106 + ... + 171236.

It is an arithmetic number, because the mean of its divisors is an integer number (480480).

Almost surely, 2^22423401 is an apocalyptic number.

22423401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22423401 is an abundant number, since it is smaller than the sum of its proper divisors (23702679).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22423401 is a wasteful number, since it uses less digits than its factorization.

22423401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22423401 is about 4735.3353629917. The cubic root of 22423401 is about 281.9900781178.

Adding to 22423401 its reverse (10432422), we get a palindrome (32855823).

The spelling of 22423401 in words is "twenty-two million, four hundred twenty-three thousand, four hundred one".