4000931 has 8 divisors (see below), whose sum is σ = 4379184. Its totient is φ = 3625120.

The previous prime is 4000907. The next prime is 4000937. The reversal of 4000931 is 1390004.

4000931 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000931 is a prime.

It is a super-2 number, since 2×4000931² = 32014897733522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4000937) 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 7 ways as a sum of consecutive naturals, for example, 5801 + ... + 6453.

It is an arithmetic number, because the mean of its divisors is an integer number (547398).

Almost surely, 2^4000931 is an apocalyptic number.

4000931 is a deficient number, since it is larger than the sum of its proper divisors (378253).

4000931 is a wasteful number, since it uses less digits than its factorization.

4000931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 4000931 is about 2000.2327364584. The cubic root of 4000931 is about 158.7524198280.

Adding to 4000931 its reverse (1390004), we get a palindrome (5390935).

The spelling of 4000931 in words is "four million, nine hundred thirty-one", and thus it is an aban number.