403042420 has 24 divisors (see below), whose sum is σ = 923334048. Its totient is φ = 146560800.

The previous prime is 403042351. The next prime is 403042429. The reversal of 403042420 is 24240304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403042429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915786 + ... + 916225.

It is an arithmetic number, because the mean of its divisors is an integer number (38472252).

Almost surely, 2^403042420 is an apocalyptic number.

It is an amenable number.

403042420 is an abundant number, since it is smaller than the sum of its proper divisors (520291628).

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

403042420 is a wasteful number, since it uses less digits than its factorization.

403042420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832031 (or 1832029 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 403042420 is about 20075.9164174391. The cubic root of 403042420 is about 738.6696453017.

Adding to 403042420 its reverse (24240304), we get a palindrome (427282724).

It can be divided in two parts, 40304 and 2420, that added together give a palindrome (42724).

The spelling of 403042420 in words is "four hundred three million, forty-two thousand, four hundred twenty".