22810401 has 12 divisors (see below), whose sum is σ = 33489300. Its totient is φ = 14957280.

The previous prime is 22810397. The next prime is 22810421. The reversal of 22810401 is 10401822.

It can be written as a sum of positive squares in 2 ways, for example, as 767376 + 22043025 = 876^2 + 4695^2 .

It is not a de Polignac number, because 22810401 - 2² = 22810397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22810421) 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 11 ways as a sum of consecutive naturals, for example, 20226 + ... + 21323.

It is an arithmetic number, because the mean of its divisors is an integer number (2790775).

Almost surely, 2^22810401 is an apocalyptic number.

It is an amenable number.

22810401 is a deficient number, since it is larger than the sum of its proper divisors (10678899).

22810401 is a wasteful number, since it uses less digits than its factorization.

22810401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41616 (or 41613 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 22810401 is about 4776.0235552183. The cubic root of 22810401 is about 283.6030997783.

The spelling of 22810401 in words is "twenty-two million, eight hundred ten thousand, four hundred one".