23642355 has 16 divisors (see below), whose sum is σ = 41266944. Its totient is φ = 11462880.

The previous prime is 23642351. The next prime is 23642419. The reversal of 23642355 is 55324632.

It is not a de Polignac number, because 23642355 - 2² = 23642351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23642351) 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, 71479 + ... + 71808.

It is an arithmetic number, because the mean of its divisors is an integer number (2579184).

Almost surely, 2^23642355 is an apocalyptic number.

23642355 is a deficient number, since it is larger than the sum of its proper divisors (17624589).

23642355 is a wasteful number, since it uses less digits than its factorization.

23642355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143306.

The product of its digits is 21600, while the sum is 30.

The square root of 23642355 is about 4862.3404858154. The cubic root of 23642355 is about 287.0099224839.

Adding to 23642355 its reverse (55324632), we get a palindrome (78966987).

The spelling of 23642355 in words is "twenty-three million, six hundred forty-two thousand, three hundred fifty-five".