2403431220 has 96 divisors (see below), whose sum is σ = 7173734400. Its totient is φ = 599474304.

The previous prime is 2403431197. The next prime is 2403431263. The reversal of 2403431220 is 221343042.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76717 + ... + 103403.

It is an arithmetic number, because the mean of its divisors is an integer number (74726400).

Almost surely, 2^2403431220 is an apocalyptic number.

2403431220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2403431220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3586867200).

2403431220 is an abundant number, since it is smaller than the sum of its proper divisors (4770303180).

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

2403431220 is a wasteful number, since it uses less digits than its factorization.

2403431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26797 (or 26795 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2403431220 is about 49024.8020903705. The cubic root of 2403431220 is about 1339.5036440406.

Adding to 2403431220 its reverse (221343042), we get a palindrome (2624774262).

The spelling of 2403431220 in words is "two billion, four hundred three million, four hundred thirty-one thousand, two hundred twenty".