11289426 has 16 divisors (see below), whose sum is σ = 22897728. Its totient is φ = 3710000.

The previous prime is 11289419. The next prime is 11289427. The reversal of 11289426 is 62498211.

It is a super-2 number, since 2×11289426² = 254902278818952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11289427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12825 + ... + 13676.

It is an arithmetic number, because the mean of its divisors is an integer number (1431108).

Almost surely, 2^11289426 is an apocalyptic number.

11289426 is an abundant number, since it is smaller than the sum of its proper divisors (11608302).

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

11289426 is a wasteful number, since it uses less digits than its factorization.

11289426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26577.

The product of its digits is 6912, while the sum is 33.

The square root of 11289426 is about 3359.9741070431. The cubic root of 11289426 is about 224.3316860187.

The spelling of 11289426 in words is "eleven million, two hundred eighty-nine thousand, four hundred twenty-six".