11261438 has 4 divisors (see below), whose sum is σ = 16892160. Its totient is φ = 5630718.

The previous prime is 11261413. The next prime is 11261443. The reversal of 11261438 is 83416211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83416211 = 47 ⋅1774813.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815358 + ... + 2815361.

It is an arithmetic number, because the mean of its divisors is an integer number (4223040).

Almost surely, 2^11261438 is an apocalyptic number.

11261438 is a deficient number, since it is larger than the sum of its proper divisors (5630722).

11261438 is an equidigital number, since it uses as much as digits as its factorization.

11261438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630721.

The product of its digits is 1152, while the sum is 26.

The square root of 11261438 is about 3355.8066094458. The cubic root of 11261438 is about 224.1461498400.

Adding to 11261438 its reverse (83416211), we get a palindrome (94677649).

The spelling of 11261438 in words is "eleven million, two hundred sixty-one thousand, four hundred thirty-eight".