23561426 has 24 divisors (see below), whose sum is σ = 41873664. Its totient is φ = 9730080.

The previous prime is 23561423. The next prime is 23561431. The reversal of 23561426 is 62416532.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23561423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101006 + ... + 101238.

It is an arithmetic number, because the mean of its divisors is an integer number (1744736).

Almost surely, 2^23561426 is an apocalyptic number.

23561426 is a deficient number, since it is larger than the sum of its proper divisors (18312238).

23561426 is an equidigital number, since it uses as much as digits as its factorization.

23561426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 273 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 23561426 is about 4854.0113308479. The cubic root of 23561426 is about 286.6820648540.

Adding to 23561426 its reverse (62416532), we get a palindrome (85977958).

The spelling of 23561426 in words is "twenty-three million, five hundred sixty-one thousand, four hundred twenty-six".