2765833840 has 80 divisors (see below), whose sum is σ = 8017344000. Its totient is φ = 862076160.

The previous prime is 2765833823. The next prime is 2765833841. The reversal of 2765833840 is 483385672.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2765833841) 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, 218340 + ... + 230659.

It is an arithmetic number, because the mean of its divisors is an integer number (100216800).

Almost surely, 2^2765833840 is an apocalyptic number.

2765833840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2765833840 is an abundant number, since it is smaller than the sum of its proper divisors (5251510160).

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

2765833840 is a wasteful number, since it uses less digits than its factorization.

2765833840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449030 (or 449024 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 2765833840 is about 52591.1954608374. The cubic root of 2765833840 is about 1403.7034327325.

The spelling of 2765833840 in words is "two billion, seven hundred sixty-five million, eight hundred thirty-three thousand, eight hundred forty".