40134878 has 16 divisors (see below), whose sum is σ = 72424320. Its totient is φ = 16295256.

The previous prime is 40134827. The next prime is 40134881. The reversal of 40134878 is 87843104.

It is a happy number.

40134878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40134878² = 3221616864149768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 75176 + ... + 75707.

It is an arithmetic number, because the mean of its divisors is an integer number (4526520).

Almost surely, 2^40134878 is an apocalyptic number.

40134878 is a deficient number, since it is larger than the sum of its proper divisors (32289442).

40134878 is a wasteful number, since it uses less digits than its factorization.

40134878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150911.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 40134878 is about 6335.2093888048. The cubic root of 40134878 is about 342.3791549801.

The spelling of 40134878 in words is "forty million, one hundred thirty-four thousand, eight hundred seventy-eight".