11291426 has 4 divisors (see below), whose sum is σ = 16937142. Its totient is φ = 5645712.

The previous prime is 11291407. The next prime is 11291431. The reversal of 11291426 is 62419211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11215801 + 75625 = 3349^2 + 275^2 .

It is a super-2 number, since 2×11291426² = 254992602226952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11291395 and 11291404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822855 + ... + 2822858.

Almost surely, 2^11291426 is an apocalyptic number.

11291426 is a deficient number, since it is larger than the sum of its proper divisors (5645716).

11291426 is an equidigital number, since it uses as much as digits as its factorization.

11291426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645715.

The product of its digits is 864, while the sum is 26.

The square root of 11291426 is about 3360.2717152040. The cubic root of 11291426 is about 224.3449325404.

The spelling of 11291426 in words is "eleven million, two hundred ninety-one thousand, four hundred twenty-six".