2320421740 has 96 divisors (see below), whose sum is σ = 6313144320. Its totient is φ = 695713536.

The previous prime is 2320421729. The next prime is 2320421743. The reversal of 2320421740 is 471240232.

It is a happy number.

2320421740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2320421743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1029 + ... + 68131.

It is an arithmetic number, because the mean of its divisors is an integer number (65761920).

Almost surely, 2^2320421740 is an apocalyptic number.

2320421740 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 2320421740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3156572160).

2320421740 is an abundant number, since it is smaller than the sum of its proper divisors (3992722580).

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

2320421740 is a wasteful number, since it uses less digits than its factorization.

2320421740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67151 (or 67149 counting only the distinct ones).

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

The square root of 2320421740 is about 48170.7560663106. The cubic root of 2320421740 is about 1323.9014014618.

Adding to 2320421740 its reverse (471240232), we get a palindrome (2791661972).

It can be divided in two parts, 23204 and 21740, that added together give a palindrome (44944).

The spelling of 2320421740 in words is "two billion, three hundred twenty million, four hundred twenty-one thousand, seven hundred forty".