403042032 has 30 divisors (see below), whose sum is σ = 1127958312. Its totient is φ = 134347296.

The previous prime is 403042027. The next prime is 403042033. The reversal of 403042032 is 230240304.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 403041996 and 403042014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403042033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1399308 + ... + 1399595.

Almost surely, 2^403042032 is an apocalyptic number.

It is an amenable number.

403042032 is an abundant number, since it is smaller than the sum of its proper divisors (724916280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

403042032 is a wasteful number, since it uses less digits than its factorization.

403042032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798917 (or 2798908 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 403042032 is about 20075.9067541170. The cubic root of 403042032 is about 738.6694082680.

Adding to 403042032 its reverse (230240304), we get a palindrome (633282336).

The spelling of 403042032 in words is "four hundred three million, forty-two thousand, thirty-two".