2431262220 has 24 divisors (see below), whose sum is σ = 6807534384. Its totient is φ = 648336576.

The previous prime is 2431262213. The next prime is 2431262221. The reversal of 2431262220 is 222621342.

It is a happy number.

It is a super-2 number, since 2×2431262220² = 11822071964798656800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2431262221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20260459 + ... + 20260578.

It is an arithmetic number, because the mean of its divisors is an integer number (283647266).

Almost surely, 2^2431262220 is an apocalyptic number.

2431262220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2431262220 is an abundant number, since it is smaller than the sum of its proper divisors (4376272164).

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

2431262220 is a wasteful number, since it uses less digits than its factorization.

2431262220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40521049 (or 40521047 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2431262220 is about 49307.8312238533. The cubic root of 2431262220 is about 1344.6541622219.

Adding to 2431262220 its reverse (222621342), we get a palindrome (2653883562).

The spelling of 2431262220 in words is "two billion, four hundred thirty-one million, two hundred sixty-two thousand, two hundred twenty".