40235879 has 4 divisors (see below), whose sum is σ = 40265280. Its totient is φ = 40206480.

The previous prime is 40235873. The next prime is 40235887. The reversal of 40235879 is 97853204.

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 40235879 - 2⁸ = 40235623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235873) 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, 12542 + ... + 15419.

It is an arithmetic number, because the mean of its divisors is an integer number (10066320).

Almost surely, 2^40235879 is an apocalyptic number.

40235879 is a deficient number, since it is larger than the sum of its proper divisors (29401).

40235879 is a wasteful number, since it uses less digits than its factorization.

40235879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29400.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 40235879 is about 6343.1757818935. The cubic root of 40235879 is about 342.6661179360. Note that the first 3 decimals are identical.

It can be divided in two parts, 40235 and 879, that added together give a palindrome (41114).

The spelling of 40235879 in words is "forty million, two hundred thirty-five thousand, eight hundred seventy-nine".