22345678890 has 24 divisors (see below), whose sum is σ = 58098765348. Its totient is φ = 5958847680.

The previous prime is 22345678889. The next prime is 22345678907. The reversal of 22345678890 is 9887654322.

22345678890 is a `hidden beast` number, since 2 + 23 + 456 + 7 + 88 + 90 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20189283921 + 2156394969 = 142089^2 + 46437^2 .

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 11 ways as a sum of consecutive naturals, for example, 124142571 + ... + 124142750.

Almost surely, 2^22345678890 is an apocalyptic number.

22345678890 is an abundant number, since it is smaller than the sum of its proper divisors (35753086458).

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

22345678890 is a wasteful number, since it uses less digits than its factorization.

22345678890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248285334 (or 248285331 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 22345678890 in words is "twenty-two billion, three hundred forty-five million, six hundred seventy-eight thousand, eight hundred ninety".