23236642 has 32 divisors (see below), whose sum is σ = 41368320. Its totient is φ = 9649920.

The previous prime is 23236613. The next prime is 23236643. The reversal of 23236642 is 24663232.

It is a self number, because there is not a number n which added to its sum of digits gives 23236642.

It is not an unprimeable number, because it can be changed into a prime (23236643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31959 + ... + 32677.

It is an arithmetic number, because the mean of its divisors is an integer number (1292760).

Almost surely, 2^23236642 is an apocalyptic number.

23236642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23236642 is a deficient number, since it is larger than the sum of its proper divisors (18131678).

23236642 is a wasteful number, since it uses less digits than its factorization.

23236642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858.

The product of its digits is 10368, while the sum is 28.

The square root of 23236642 is about 4820.4400214088. The cubic root of 23236642 is about 285.3587029563.

Adding to 23236642 its reverse (24663232), we get a palindrome (47899874).

The spelling of 23236642 in words is "twenty-three million, two hundred thirty-six thousand, six hundred forty-two".