40379879 has 8 divisors (see below), whose sum is σ = 42810768. Its totient is φ = 37955200.

The previous prime is 40379873. The next prime is 40379891. The reversal of 40379879 is 97897304.

40379879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40379879 - 2⁴ = 40379863 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 (40379873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23849 + ... + 25485.

It is an arithmetic number, because the mean of its divisors is an integer number (5351346).

Almost surely, 2^40379879 is an apocalyptic number.

40379879 is a deficient number, since it is larger than the sum of its proper divisors (2430889).

40379879 is a wasteful number, since it uses less digits than its factorization.

40379879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 40379879 is about 6354.5164253466. The cubic root of 40379879 is about 343.0744199572.

The spelling of 40379879 in words is "forty million, three hundred seventy-nine thousand, eight hundred seventy-nine".