2431640620 has 48 divisors (see below), whose sum is σ = 5325643008. Its totient is φ = 931553280.

The previous prime is 2431640599. The next prime is 2431640623. The reversal of 2431640620 is 260461342.

2431640620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2431640620² = 11825752209667968800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2431640623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39924 + ... + 80356.

It is an arithmetic number, because the mean of its divisors is an integer number (110950896).

Almost surely, 2^2431640620 is an apocalyptic number.

2431640620 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 2431640620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2662821504).

2431640620 is an abundant number, since it is smaller than the sum of its proper divisors (2894002388).

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

2431640620 is a wasteful number, since it uses less digits than its factorization.

2431640620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40570 (or 40568 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2431640620 is about 49311.6681932380. The cubic root of 2431640620 is about 1344.7239189564.

The spelling of 2431640620 in words is "two billion, four hundred thirty-one million, six hundred forty thousand, six hundred twenty".