22390026 has 16 divisors (see below), whose sum is σ = 44834304. Its totient is φ = 7454304.

The previous prime is 22390013. The next prime is 22390031. The reversal of 22390026 is 62009322.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 22389978 and 22390005.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4806 + ... + 8238.

It is an arithmetic number, because the mean of its divisors is an integer number (2802144).

Almost surely, 2^22390026 is an apocalyptic number.

22390026 is an abundant number, since it is smaller than the sum of its proper divisors (22444278).

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

22390026 is a wasteful number, since it uses less digits than its factorization.

22390026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 22390026 is about 4731.8100130922. The cubic root of 22390026 is about 281.8501039298.

Adding to 22390026 its reverse (62009322), we get a palindrome (84399348).

The spelling of 22390026 in words is "twenty-two million, three hundred ninety thousand, twenty-six".