2801843240 has 128 divisors (see below), whose sum is σ = 7619512320. Its totient is φ = 906854400.

The previous prime is 2801843197. The next prime is 2801843243. The reversal of 2801843240 is 423481082.

It is a super-4 number, since 4×2801843240⁴ (a number of 39 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2801843197 and 2801843206.

It is not an unprimeable number, because it can be changed into a prime (2801843243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351944 + ... + 359816.

It is an arithmetic number, because the mean of its divisors is an integer number (59527440).

Almost surely, 2^2801843240 is an apocalyptic number.

2801843240 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 2801843240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3809756160).

2801843240 is an abundant number, since it is smaller than the sum of its proper divisors (4817669080).

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

2801843240 is a wasteful number, since it uses less digits than its factorization.

2801843240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963 (or 7959 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 2801843240 is about 52932.4403367160. The cubic root of 2801843240 is about 1409.7689610213.

The spelling of 2801843240 in words is "two billion, eight hundred one million, eight hundred forty-three thousand, two hundred forty".