403868 has 12 divisors (see below), whose sum is σ = 729792. Its totient is φ = 195360.

The previous prime is 403867. The next prime is 403877. The reversal of 403868 is 868304.

403868 is nontrivially palindromic in base 14.

It is a super-2 number, since 2×403868² = 326218722848, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 403868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505 + ... + 1752.

It is an arithmetic number, because the mean of its divisors is an integer number (60816).

2⁴⁰³⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

403868 is a deficient number, since it is larger than the sum of its proper divisors (325924).

403868 is a wasteful number, since it uses less digits than its factorization.

403868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292 (or 3290 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 403868 is about 635.5060975317. The cubic root of 403868 is about 73.9173657570.

The spelling of 403868 in words is "four hundred three thousand, eight hundred sixty-eight".