40279079 has 4 divisors (see below), whose sum is σ = 40306920. Its totient is φ = 40251240.

The previous prime is 40279061. The next prime is 40279087. The reversal of 40279079 is 97097204.

It is a happy number.

40279079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40279079 - 2¹⁶ = 40213543 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 (40279009) 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 3 ways as a sum of consecutive naturals, for example, 11624 + ... + 14685.

It is an arithmetic number, because the mean of its divisors is an integer number (10076730).

Almost surely, 2^40279079 is an apocalyptic number.

40279079 is a deficient number, since it is larger than the sum of its proper divisors (27841).

40279079 is a wasteful number, since it uses less digits than its factorization.

40279079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27840.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 40279079 is about 6346.5801027010. The cubic root of 40279079 is about 342.7887106892.

The spelling of 40279079 in words is "forty million, two hundred seventy-nine thousand, seventy-nine".