403424420 has 96 divisors (see below), whose sum is σ = 1007596800. Its totient is φ = 132802560.

The previous prime is 403424389. The next prime is 403424443. The reversal of 403424420 is 24424304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384056 + ... + 385104.

It is an arithmetic number, because the mean of its divisors is an integer number (10495800).

Almost surely, 2^403424420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403424420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503798400).

403424420 is an abundant number, since it is smaller than the sum of its proper divisors (604172380).

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

403424420 is a wasteful number, since it uses less digits than its factorization.

403424420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 403424420 is about 20085.4280512017. The cubic root of 403424420 is about 738.9029397730.

Adding to 403424420 its reverse (24424304), we get a palindrome (427848724).

The spelling of 403424420 in words is "four hundred three million, four hundred twenty-four thousand, four hundred twenty".