2256345020 has 24 divisors (see below), whose sum is σ = 4848519984. Its totient is φ = 881548416.

The previous prime is 2256344963. The next prime is 2256345023. The reversal of 2256345020 is 205436522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256345023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310969 + ... + 1312688.

It is an arithmetic number, because the mean of its divisors is an integer number (202021666).

Almost surely, 2^2256345020 is an apocalyptic number.

2256345020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2256345020 is an abundant number, since it is smaller than the sum of its proper divisors (2592174964).

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

2256345020 is a wasteful number, since it uses less digits than its factorization.

2256345020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623709 (or 2623707 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2256345020 is about 47501.0001999958. Note that the first 3 decimals coincide. The cubic root of 2256345020 is about 1311.6012934020.

The spelling of 2256345020 in words is "two billion, two hundred fifty-six million, three hundred forty-five thousand, twenty".