403868404 has 6 divisors (see below), whose sum is σ = 706769714. Its totient is φ = 201934200.

The previous prime is 403868401. The next prime is 403868417. The reversal of 403868404 is 404868304.

It can be written as a sum of positive squares in only one way, i.e., 282912400 + 120956004 = 16820^2 + 10998^2 .

It is a super-3 number, since 3×403868404³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403868401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50483547 + ... + 50483554.

Almost surely, 2^403868404 is an apocalyptic number.

It is an amenable number.

403868404 is a deficient number, since it is larger than the sum of its proper divisors (302901310).

403868404 is a wasteful number, since it uses less digits than its factorization.

403868404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100967105 (or 100967103 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 403868404 is about 20096.4774027689. The cubic root of 403868404 is about 739.1739040413.

The spelling of 403868404 in words is "four hundred three million, eight hundred sixty-eight thousand, four hundred four".