22630890 has 32 divisors (see below), whose sum is σ = 54460800. Its totient is φ = 6018624.

The previous prime is 22630879. The next prime is 22630921. The reversal of 22630890 is 9803622.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13836 + ... + 15384.

It is an arithmetic number, because the mean of its divisors is an integer number (1701900).

Almost surely, 2^22630890 is an apocalyptic number.

22630890 is an abundant number, since it is smaller than the sum of its proper divisors (31829910).

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

22630890 is a wasteful number, since it uses less digits than its factorization.

22630890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 22630890 is about 4757.1935003739. The cubic root of 22630890 is about 282.8571825761.

The spelling of 22630890 in words is "twenty-two million, six hundred thirty thousand, eight hundred ninety".