22733890 has 32 divisors (see below), whose sum is σ = 43182720. Its totient is φ = 8600064.

The previous prime is 22733869. The next prime is 22733891. The reversal of 22733890 is 9833722.

It is a super-6 number, since 6×22733890⁶ (a number of 45 digits) contains 666666 as substring.

It is not an unprimeable number, because it can be changed into a prime (22733891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21801 + ... + 22819.

It is an arithmetic number, because the mean of its divisors is an integer number (1349460).

Almost surely, 2^22733890 is an apocalyptic number.

22733890 is a deficient number, since it is larger than the sum of its proper divisors (20448830).

22733890 is a wasteful number, since it uses less digits than its factorization.

22733890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 22733890 is about 4768.0069211359. The cubic root of 22733890 is about 283.2856559530.

The spelling of 22733890 in words is "twenty-two million, seven hundred thirty-three thousand, eight hundred ninety".