2345731220 has 48 divisors (see below), whose sum is σ = 5662355328. Its totient is φ = 799593600.

The previous prime is 2345731189. The next prime is 2345731229. The reversal of 2345731220 is 221375432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2345731229) 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, 24206 + ... + 72645.

It is an arithmetic number, because the mean of its divisors is an integer number (117965736).

Almost surely, 2^2345731220 is an apocalyptic number.

2345731220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2345731220 is an abundant number, since it is smaller than the sum of its proper divisors (3316624108).

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

2345731220 is a wasteful number, since it uses less digits than its factorization.

2345731220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97040 (or 97038 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 2345731220 is about 48432.7494573661. The cubic root of 2345731220 is about 1328.6973923590.

The spelling of 2345731220 in words is "two billion, three hundred forty-five million, seven hundred thirty-one thousand, two hundred twenty".