40378863 has 8 divisors (see below), whose sum is σ = 61529728. Its totient is φ = 23073624.

The previous prime is 40378853. The next prime is 40378867. The reversal of 40378863 is 36887304.

40378863 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 40378863 - 2⁶ = 40378799 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 (40378867) 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, 961381 + ... + 961422.

It is an arithmetic number, because the mean of its divisors is an integer number (7691216).

Almost surely, 2^40378863 is an apocalyptic number.

40378863 is a deficient number, since it is larger than the sum of its proper divisors (21150865).

40378863 is a wasteful number, since it uses less digits than its factorization.

40378863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922813.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 40378863 is about 6354.4364817032. The cubic root of 40378863 is about 343.0715425627.

The spelling of 40378863 in words is "forty million, three hundred seventy-eight thousand, eight hundred sixty-three".