2345156920 has 64 divisors (see below), whose sum is σ = 5473008000. Its totient is φ = 903318528.

The previous prime is 2345156893. The next prime is 2345156921. The reversal of 2345156920 is 296515432.

It is a self number, because there is not a number n which added to its sum of digits gives 2345156920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2345156921) 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, 471969 + ... + 476911.

It is an arithmetic number, because the mean of its divisors is an integer number (85515750).

Almost surely, 2^2345156920 is an apocalyptic number.

2345156920 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 2345156920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2736504000).

2345156920 is an abundant number, since it is smaller than the sum of its proper divisors (3127851080).

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

2345156920 is a wasteful number, since it uses less digits than its factorization.

2345156920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392 (or 5388 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 2345156920 is about 48426.8202548959. The cubic root of 2345156920 is about 1328.5889495292.

The spelling of 2345156920 in words is "two billion, three hundred forty-five million, one hundred fifty-six thousand, nine hundred twenty".