2431227220 has 12 divisors (see below), whose sum is σ = 5105577204. Its totient is φ = 972490880.

The previous prime is 2431227193. The next prime is 2431227229. The reversal of 2431227220 is 227221342.

It can be written as a sum of positive squares in 2 ways, for example, as 1768370704 + 662856516 = 42052^2 + 25746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431227229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60780661 + ... + 60780700.

It is an arithmetic number, because the mean of its divisors is an integer number (425464767).

Almost surely, 2^2431227220 is an apocalyptic number.

2431227220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2431227220 is an abundant number, since it is smaller than the sum of its proper divisors (2674349984).

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

2431227220 is a wasteful number, since it uses less digits than its factorization.

2431227220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121561370 (or 121561368 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2431227220 is about 49307.4763093793. The cubic root of 2431227220 is about 1344.6477097269.

Adding to 2431227220 its reverse (227221342), we get a palindrome (2658448562).

The spelling of 2431227220 in words is "two billion, four hundred thirty-one million, two hundred twenty-seven thousand, two hundred twenty".