40259409 has 8 divisors (see below), whose sum is σ = 53764032. Its totient is φ = 26797200.

The previous prime is 40259393. The next prime is 40259411. The reversal of 40259409 is 90495204.

40259409 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 not a de Polignac number, because 40259409 - 2⁴ = 40259393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40259409.

It is not an unprimeable number, because it can be changed into a prime (40259449) 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, 8317 + ... + 12234.

It is an arithmetic number, because the mean of its divisors is an integer number (6720504).

Almost surely, 2^40259409 is an apocalyptic number.

It is an amenable number.

40259409 is a deficient number, since it is larger than the sum of its proper divisors (13504623).

40259409 is a wasteful number, since it uses less digits than its factorization.

40259409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21207.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 40259409 is about 6345.0302599751. The cubic root of 40259409 is about 342.7329021323.

The spelling of 40259409 in words is "forty million, two hundred fifty-nine thousand, four hundred nine".