632405403 has 12 divisors (see below), whose sum is σ = 1043970928. Its totient is φ = 361374480.

The previous prime is 632405399. The next prime is 632405437. The reversal of 632405403 is 304504236.

It is not a de Polignac number, because 632405403 - 2² = 632405399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (632405603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5019028 + ... + 5019153.

Almost surely, 2^632405403 is an apocalyptic number.

632405403 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

632405403 is a deficient number, since it is larger than the sum of its proper divisors (411565525).

632405403 is a wasteful number, since it uses less digits than its factorization.

632405403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10038194 (or 10038191 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 632405403 is about 25147.6719200804. The cubic root of 632405403 is about 858.3515398113.

Adding to 632405403 its reverse (304504236), we get a palindrome (936909639).

The spelling of 632405403 in words is "six hundred thirty-two million, four hundred five thousand, four hundred three".