11840423 has 16 divisors (see below), whose sum is σ = 14224896. Its totient is φ = 9636000.

The previous prime is 11840393. The next prime is 11840429. The reversal of 11840423 is 32404811.

It is a cyclic number.

It is not a de Polignac number, because 11840423 - 2⁸ = 11840167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11840429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40265 + ... + 40557.

It is an arithmetic number, because the mean of its divisors is an integer number (889056).

Almost surely, 2^11840423 is an apocalyptic number.

11840423 is a deficient number, since it is larger than the sum of its proper divisors (2384473).

11840423 is a wasteful number, since it uses less digits than its factorization.

11840423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 11840423 is about 3440.9915722071. The cubic root of 11840423 is about 227.9234828390.

The spelling of 11840423 in words is "eleven million, eight hundred forty thousand, four hundred twenty-three".