23945890 has 16 divisors (see below), whose sum is σ = 45371520. Its totient is φ = 9074160.

The previous prime is 23945881. The next prime is 23945893. The reversal of 23945890 is 9854932.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23945893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62826 + ... + 63205.

It is an arithmetic number, because the mean of its divisors is an integer number (2835720).

Almost surely, 2^23945890 is an apocalyptic number.

23945890 is a deficient number, since it is larger than the sum of its proper divisors (21425630).

23945890 is a wasteful number, since it uses less digits than its factorization.

23945890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126057.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 23945890 is about 4893.4537905246. The cubic root of 23945890 is about 288.2329728194.

The spelling of 23945890 in words is "twenty-three million, nine hundred forty-five thousand, eight hundred ninety".