40259878 has 8 divisors (see below), whose sum is σ = 61380000. Its totient is φ = 19799880.

The previous prime is 40259873. The next prime is 40259899. The reversal of 40259878 is 87895204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40259873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164878 + ... + 165121.

It is an arithmetic number, because the mean of its divisors is an integer number (7672500).

Almost surely, 2^40259878 is an apocalyptic number.

40259878 is a deficient number, since it is larger than the sum of its proper divisors (21120122).

40259878 is a wasteful number, since it uses less digits than its factorization.

40259878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330062.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 40259878 is about 6345.0672179261. The cubic root of 40259878 is about 342.7342330105.

The spelling of 40259878 in words is "forty million, two hundred fifty-nine thousand, eight hundred seventy-eight".