2345913820 has 72 divisors (see below), whose sum is σ = 5209878240. Its totient is φ = 886247040.

The previous prime is 2345913763. The next prime is 2345913833. The reversal of 2345913820 is 283195432.

It is a self number, because there is not a number n which added to its sum of digits gives 2345913820.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1280305 + ... + 1282135.

It is an arithmetic number, because the mean of its divisors is an integer number (72359420).

Almost surely, 2^2345913820 is an apocalyptic number.

2345913820 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 2345913820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2604939120).

2345913820 is an abundant number, since it is smaller than the sum of its proper divisors (2863964420).

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

2345913820 is a wasteful number, since it uses less digits than its factorization.

2345913820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 2345913820 is about 48434.6345087893. The cubic root of 2345913820 is about 1328.7318682965.

The spelling of 2345913820 in words is "two billion, three hundred forty-five million, nine hundred thirteen thousand, eight hundred twenty".