40841439 has 4 divisors (see below), whose sum is σ = 54455256. Its totient is φ = 27227624.

The previous prime is 40841407. The next prime is 40841441. The reversal of 40841439 is 93414804.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40841439 - 2⁵ = 40841407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40841239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6806904 + ... + 6806909.

It is an arithmetic number, because the mean of its divisors is an integer number (13613814).

Almost surely, 2^40841439 is an apocalyptic number.

40841439 is a deficient number, since it is larger than the sum of its proper divisors (13613817).

40841439 is a wasteful number, since it uses less digits than its factorization.

40841439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13613816.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40841439 is about 6390.7307093947. The cubic root of 40841439 is about 344.3766353239.

The spelling of 40841439 in words is "forty million, eight hundred forty-one thousand, four hundred thirty-nine".