2745532820 has 24 divisors (see below), whose sum is σ = 5838604800. Its totient is φ = 1084311072.

The previous prime is 2745532817. The next prime is 2745532831. The reversal of 2745532820 is 282355472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 867260 + ... + 870419.

It is an arithmetic number, because the mean of its divisors is an integer number (243275200).

Almost surely, 2^2745532820 is an apocalyptic number.

2745532820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2745532820 is an abundant number, since it is smaller than the sum of its proper divisors (3093071980).

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

2745532820 is a wasteful number, since it uses less digits than its factorization.

2745532820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737767 (or 1737765 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 2745532820 is about 52397.8322070675. The cubic root of 2745532820 is about 1400.2606351485.

The spelling of 2745532820 in words is "two billion, seven hundred forty-five million, five hundred thirty-two thousand, eight hundred twenty".