22091426 has 8 divisors (see below), whose sum is σ = 37871040. Its totient is φ = 9467748.

The previous prime is 22091423. The next prime is 22091453. The reversal of 22091426 is 62419022.

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

It is a super-2 number, since 2×22091426² = 976062205426952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22091395 and 22091404.

It is not an unprimeable number, because it can be changed into a prime (22091423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788966 + ... + 788993.

It is an arithmetic number, because the mean of its divisors is an integer number (4733880).

Almost surely, 2^22091426 is an apocalyptic number.

22091426 is a deficient number, since it is larger than the sum of its proper divisors (15779614).

22091426 is a wasteful number, since it uses less digits than its factorization.

22091426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577968.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 22091426 is about 4700.1516996795. The cubic root of 22091426 is about 280.5915469966.

The spelling of 22091426 in words is "twenty-two million, ninety-one thousand, four hundred twenty-six".