23422554 has 64 divisors (see below), whose sum is σ = 56361600. Its totient is φ = 7185024.

The previous prime is 23422547. The next prime is 23422559. The reversal of 23422554 is 45522432.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23422559) 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 31 ways as a sum of consecutive naturals, for example, 37654 + ... + 38270.

It is an arithmetic number, because the mean of its divisors is an integer number (880650).

Almost surely, 2^23422554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23422554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28180800).

23422554 is an abundant number, since it is smaller than the sum of its proper divisors (32939046).

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

23422554 is a wasteful number, since it uses less digits than its factorization.

23422554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 678 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 23422554 is about 4839.6853203488. The cubic root of 23422554 is about 286.1177160619.

Adding to 23422554 its reverse (45522432), we get a palindrome (68944986).

The spelling of 23422554 in words is "twenty-three million, four hundred twenty-two thousand, five hundred fifty-four".