40863819 has 8 divisors (see below), whose sum is σ = 54687232. Its totient is φ = 27141480.

The previous prime is 40863791. The next prime is 40863833. The reversal of 40863819 is 91836804.

40863819 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 40863819 - 2⁵ = 40863787 is a prime.

It is a super-2 number, since 2×40863819² = 3339703406529522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40863919) 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, 24319 + ... + 25944.

It is an arithmetic number, because the mean of its divisors is an integer number (6835904).

Almost surely, 2^40863819 is an apocalyptic number.

40863819 is a deficient number, since it is larger than the sum of its proper divisors (13823413).

40863819 is a wasteful number, since it uses less digits than its factorization.

40863819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50537.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 40863819 is about 6392.4814430704. The cubic root of 40863819 is about 344.4395268539.

The spelling of 40863819 in words is "forty million, eight hundred sixty-three thousand, eight hundred nineteen".