4000835 has 8 divisors (see below), whose sum is σ = 4831440. Its totient is φ = 3180384.

The previous prime is 4000823. The next prime is 4000853. The reversal of 4000835 is 5380004.

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-4000835 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1640 + ... + 3269.

It is an arithmetic number, because the mean of its divisors is an integer number (603930).

Almost surely, 2^4000835 is an apocalyptic number.

4000835 is a deficient number, since it is larger than the sum of its proper divisors (830605).

4000835 is a wasteful number, since it uses less digits than its factorization.

4000835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4000835 is about 2000.2087391070. The cubic root of 4000835 is about 158.7511500940.

Adding to 4000835 its reverse (5380004), we get a palindrome (9380839).

The spelling of 4000835 in words is "four million, eight hundred thirty-five", and thus it is an aban number.