2731804290 has 144 divisors (see below), whose sum is σ = 7613678592. Its totient is φ = 679408128.

The previous prime is 2731804261. The next prime is 2731804303. The reversal of 2731804290 is 924081372.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3302857 + ... + 3303683.

It is an arithmetic number, because the mean of its divisors is an integer number (52872768).

Almost surely, 2^2731804290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2731804290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3806839296).

2731804290 is an abundant number, since it is smaller than the sum of its proper divisors (4881874302).

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

2731804290 is a wasteful number, since it uses less digits than its factorization.

2731804290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2731804290 is about 52266.6651892007. The cubic root of 2731804290 is about 1397.9228192699.

The spelling of 2731804290 in words is "two billion, seven hundred thirty-one million, eight hundred four thousand, two hundred ninety".