11840438 has 4 divisors (see below), whose sum is σ = 17760660. Its totient is φ = 5920218.

The previous prime is 11840429. The next prime is 11840443. The reversal of 11840438 is 83404811.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11840438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2960108 + ... + 2960111.

It is an arithmetic number, because the mean of its divisors is an integer number (4440165).

Almost surely, 2^11840438 is an apocalyptic number.

11840438 is a deficient number, since it is larger than the sum of its proper divisors (5920222).

11840438 is an equidigital number, since it uses as much as digits as its factorization.

11840438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5920221.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 11840438 is about 3440.9937518107. The cubic root of 11840438 is about 227.9235790870.

The spelling of 11840438 in words is "eleven million, eight hundred forty thousand, four hundred thirty-eight".