403402255 has 4 divisors (see below), whose sum is σ = 484082712. Its totient is φ = 322721800.

The previous prime is 403402229. The next prime is 403402261. The reversal of 403402255 is 552204304.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 403402255 - 2⁷ = 403402127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40340221 + ... + 40340230.

It is an arithmetic number, because the mean of its divisors is an integer number (121020678).

Almost surely, 2^403402255 is an apocalyptic number.

403402255 is a deficient number, since it is larger than the sum of its proper divisors (80680457).

403402255 is an equidigital number, since it uses as much as digits as its factorization.

403402255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80680456.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 403402255 is about 20084.8762754467. The cubic root of 403402255 is about 738.8894072228.

Adding to 403402255 its reverse (552204304), we get a palindrome (955606559).

The spelling of 403402255 in words is "four hundred three million, four hundred two thousand, two hundred fifty-five".