403322540 has 12 divisors (see below), whose sum is σ = 846977376. Its totient is φ = 161329008.

The previous prime is 403322509. The next prime is 403322551. The reversal of 403322540 is 45223304.

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, 10083044 + ... + 10083083.

It is an arithmetic number, because the mean of its divisors is an integer number (70581448).

Almost surely, 2^403322540 is an apocalyptic number.

It is an amenable number.

403322540 is an abundant number, since it is smaller than the sum of its proper divisors (443654836).

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

403322540 is a wasteful number, since it uses less digits than its factorization.

403322540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20166136 (or 20166134 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 403322540 is about 20082.8917240521. The cubic root of 403322540 is about 738.8407341770.

Adding to 403322540 its reverse (45223304), we get a palindrome (448545844).

The spelling of 403322540 in words is "four hundred three million, three hundred twenty-two thousand, five hundred forty".