22963890 has 48 divisors (see below), whose sum is σ = 57653568. Its totient is φ = 5853408.

The previous prime is 22963879. The next prime is 22963903. The reversal of 22963890 is 9836922.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15147 + ... + 16593.

It is an arithmetic number, because the mean of its divisors is an integer number (1201116).

Almost surely, 2^22963890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22963890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28826784).

22963890 is an abundant number, since it is smaller than the sum of its proper divisors (34689678).

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

22963890 is a wasteful number, since it uses less digits than its factorization.

22963890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 22963890 is about 4792.0653167502. The cubic root of 22963890 is about 284.2377909913.

The spelling of 22963890 in words is "twenty-two million, nine hundred sixty-three thousand, eight hundred ninety".