22890850 has 12 divisors (see below), whose sum is σ = 42577074. Its totient is φ = 9156320.

The previous prime is 22890821. The next prime is 22890851. The reversal of 22890850 is 5809822.

It can be written as a sum of positive squares in 3 ways, for example, as 22118209 + 772641 = 4703^2 + 879^2 .

It is not an unprimeable number, because it can be changed into a prime (22890851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228859 + ... + 228958.

Almost surely, 2^22890850 is an apocalyptic number.

22890850 is a deficient number, since it is larger than the sum of its proper divisors (19686224).

22890850 is a wasteful number, since it uses less digits than its factorization.

22890850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457829 (or 457824 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 22890850 is about 4784.4383160409. The cubic root of 22890850 is about 283.9361176821.

It can be divided in two parts, 2 and 2890850, that multiplied together give a triangular number (5781700 = T₃₄₀₀).

The spelling of 22890850 in words is "twenty-two million, eight hundred ninety thousand, eight hundred fifty".