22746890 has 8 divisors (see below), whose sum is σ = 40944420. Its totient is φ = 9098752.

The previous prime is 22746881. The next prime is 22746907. The reversal of 22746890 is 9864722.

It can be written as a sum of positive squares in 2 ways, for example, as 20693401 + 2053489 = 4549^2 + 1433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137335 + ... + 1137354.

Almost surely, 2^22746890 is an apocalyptic number.

22746890 is a deficient number, since it is larger than the sum of its proper divisors (18197530).

22746890 is a wasteful number, since it uses less digits than its factorization.

22746890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274696.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 22746890 is about 4769.3699793579. The cubic root of 22746890 is about 283.3396430736.

The spelling of 22746890 in words is "twenty-two million, seven hundred forty-six thousand, eight hundred ninety".