2320423040 has 128 divisors (see below), whose sum is σ = 6016792320. Its totient is φ = 850636800.

The previous prime is 2320423019. The next prime is 2320423073. The reversal of 2320423040 is 403240232.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255397 + ... + 1257243.

It is an arithmetic number, because the mean of its divisors is an integer number (47006190).

Almost surely, 2^2320423040 is an apocalyptic number.

2320423040 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 2320423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3008396160).

2320423040 is an abundant number, since it is smaller than the sum of its proper divisors (3696369280).

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

2320423040 is a wasteful number, since it uses less digits than its factorization.

2320423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2320423040 is about 48170.7695599728. The cubic root of 2320423040 is about 1323.9016486972.

Adding to 2320423040 its reverse (403240232), we get a palindrome (2723663272).

The spelling of 2320423040 in words is "two billion, three hundred twenty million, four hundred twenty-three thousand, forty".