40259479 has 8 divisors (see below), whose sum is σ = 43409520. Its totient is φ = 37117056.

The previous prime is 40259467. The next prime is 40259501. The reversal of 40259479 is 97495204.

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 40259479 - 2⁵ = 40259447 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 (40259449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14127 + ... + 16735.

It is an arithmetic number, because the mean of its divisors is an integer number (5426190).

Almost surely, 2^40259479 is an apocalyptic number.

40259479 is a deficient number, since it is larger than the sum of its proper divisors (3150041).

40259479 is a wasteful number, since it uses less digits than its factorization.

40259479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 40259479 is about 6345.0357761009. The cubic root of 40259479 is about 342.7331007715.

The spelling of 40259479 in words is "forty million, two hundred fifty-nine thousand, four hundred seventy-nine".