22790226 has 8 divisors (see below), whose sum is σ = 45580464. Its totient is φ = 7596740.

The previous prime is 22790213. The next prime is 22790227. The reversal of 22790226 is 62209722.

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

22790226 is an admirable number.

It is a super-2 number, since 2×22790226² = 1038788802262152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22790193 and 22790202.

It is not an unprimeable number, because it can be changed into a prime (22790227) 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 3 ways as a sum of consecutive naturals, for example, 1899180 + ... + 1899191.

It is an arithmetic number, because the mean of its divisors is an integer number (5697558).

Almost surely, 2^22790226 is an apocalyptic number.

22790226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22790226 is a wasteful number, since it uses less digits than its factorization.

22790226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798376.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 22790226 is about 4773.9109752906. The cubic root of 22790226 is about 283.5194627823.

Adding to 22790226 its reverse (62209722), we get a palindrome (84999948).

The spelling of 22790226 in words is "twenty-two million, seven hundred ninety thousand, two hundred twenty-six".