2802381840 has 80 divisors (see below), whose sum is σ = 9652656000. Its totient is φ = 747301248.

The previous prime is 2802381811. The next prime is 2802381851. The reversal of 2802381840 is 481832082.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2802381795 and 2802381804.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646540 + ... + 650859.

It is an arithmetic number, because the mean of its divisors is an integer number (120658200).

Almost surely, 2^2802381840 is an apocalyptic number.

2802381840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2802381840 is an abundant number, since it is smaller than the sum of its proper divisors (6850274160).

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

2802381840 is a wasteful number, since it uses less digits than its factorization.

2802381840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297421 (or 1297409 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 2802381840 is about 52937.5277095559. The cubic root of 2802381840 is about 1409.8592888101.

It can be divided in two parts, 2802381 and 840, that added together give a cube (2803221 = 141³).

The spelling of 2802381840 in words is "two billion, eight hundred two million, three hundred eighty-one thousand, eight hundred forty".