23042985 has 48 divisors (see below), whose sum is σ = 43436736. Its totient is φ = 10399872.

The previous prime is 23042983. The next prime is 23042993. The reversal of 23042985 is 58924032.

It is a happy number.

It is not a de Polignac number, because 23042985 - 2¹ = 23042983 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23042983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78499 + ... + 78791.

It is an arithmetic number, because the mean of its divisors is an integer number (904932).

Almost surely, 2^23042985 is an apocalyptic number.

It is an amenable number.

23042985 is a deficient number, since it is larger than the sum of its proper divisors (20393751).

23042985 is a wasteful number, since it uses less digits than its factorization.

23042985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 23042985 is about 4800.3109274296. The cubic root of 23042985 is about 284.5637524009.

The spelling of 23042985 in words is "twenty-three million, forty-two thousand, nine hundred eighty-five".