23661342 has 32 divisors (see below), whose sum is σ = 54869760. Its totient is φ = 7543800.

The previous prime is 23661311. The next prime is 23661343. The reversal of 23661342 is 24316632.

23661342 is a `hidden beast` number, since 2 + 3 + 6 + 613 + 42 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23661343) 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, 8284 + ... + 10767.

It is an arithmetic number, because the mean of its divisors is an integer number (1714680).

Almost surely, 2^23661342 is an apocalyptic number.

23661342 is an abundant number, since it is smaller than the sum of its proper divisors (31208418).

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

23661342 is a wasteful number, since it uses less digits than its factorization.

23661342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19085 (or 19079 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 23661342 is about 4864.2925487680. The cubic root of 23661342 is about 287.0867337723.

Adding to 23661342 its reverse (24316632), we get a palindrome (47977974).

The spelling of 23661342 in words is "twenty-three million, six hundred sixty-one thousand, three hundred forty-two".