2750481990 has 96 divisors (see below), whose sum is σ = 7640305920. Its totient is φ = 684459072.

The previous prime is 2750481989. The next prime is 2750482019. The reversal of 2750481990 is 991840572.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102567 + ... + 126573.

It is an arithmetic number, because the mean of its divisors is an integer number (79586520).

Almost surely, 2^2750481990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2750481990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3820152960).

2750481990 is an abundant number, since it is smaller than the sum of its proper divisors (4889823930).

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

2750481990 is a wasteful number, since it uses less digits than its factorization.

2750481990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24106 (or 24103 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 2750481990 is about 52445.0378014927. The cubic root of 2750481990 is about 1401.1015123605.

The spelling of 2750481990 in words is "two billion, seven hundred fifty million, four hundred eighty-one thousand, nine hundred ninety".