403432655 has 4 divisors (see below), whose sum is σ = 484119192. Its totient is φ = 322746120.

The previous prime is 403432649. The next prime is 403432657. The reversal of 403432655 is 556234304.

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

It is not a de Polignac number, because 403432655 - 2¹⁰ = 403431631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403432657) 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, 40343261 + ... + 40343270.

It is an arithmetic number, because the mean of its divisors is an integer number (121029798).

Almost surely, 2^403432655 is an apocalyptic number.

403432655 is a deficient number, since it is larger than the sum of its proper divisors (80686537).

403432655 is an equidigital number, since it uses as much as digits as its factorization.

403432655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80686536.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 403432655 is about 20085.6330495207. The cubic root of 403432655 is about 738.9079674180.

Adding to 403432655 its reverse (556234304), we get a palindrome (959666959).

The spelling of 403432655 in words is "four hundred three million, four hundred thirty-two thousand, six hundred fifty-five".