23049858 has 32 divisors (see below), whose sum is σ = 52569216. Its totient is φ = 6674688.

The previous prime is 23049857. The next prime is 23049863. The reversal of 23049858 is 85894032.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23049857) 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, 7366 + ... + 10017.

It is an arithmetic number, because the mean of its divisors is an integer number (1642788).

Almost surely, 2^23049858 is an apocalyptic number.

23049858 is an abundant number, since it is smaller than the sum of its proper divisors (29519358).

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

23049858 is a wasteful number, since it uses less digits than its factorization.

23049858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17418.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 23049858 is about 4801.0267651826. The cubic root of 23049858 is about 284.5920417371.

The spelling of 23049858 in words is "twenty-three million, forty-nine thousand, eight hundred fifty-eight".