11823438 has 16 divisors (see below), whose sum is σ = 25796736. Its totient is φ = 3582840.

The previous prime is 11823421. The next prime is 11823443. The reversal of 11823438 is 83432811.

11823438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11823438² = 279587372279688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89506 + ... + 89637.

It is an arithmetic number, because the mean of its divisors is an integer number (1612296).

Almost surely, 2^11823438 is an apocalyptic number.

11823438 is an abundant number, since it is smaller than the sum of its proper divisors (13973298).

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

11823438 is a wasteful number, since it uses less digits than its factorization.

11823438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179159.

The product of its digits is 4608, while the sum is 30.

The square root of 11823438 is about 3438.5226478824. The cubic root of 11823438 is about 227.8144458297.

The spelling of 11823438 in words is "eleven million, eight hundred twenty-three thousand, four hundred thirty-eight".