23286890 has 32 divisors (see below), whose sum is σ = 47208960. Its totient is φ = 8193600.

The previous prime is 23286883. The next prime is 23286931. The reversal of 23286890 is 9868232.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (1475280).

Almost surely, 2^23286890 is an apocalyptic number.

23286890 is an abundant number, since it is smaller than the sum of its proper divisors (23922070).

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

23286890 is a wasteful number, since it uses less digits than its factorization.

23286890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6878.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 23286890 is about 4825.6491791261. The cubic root of 23286890 is about 285.5642458648.

The spelling of 23286890 in words is "twenty-three million, two hundred eighty-six thousand, eight hundred ninety".