2290328729 has 12 divisors (see below), whose sum is σ = 2522106000. Its totient is φ = 2078307504.

The previous prime is 2290328683. The next prime is 2290328773. The reversal of 2290328729 is 9278230922.

It is a de Polignac number, because none of the positive numbers 2^k-2290328729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2290328729.

It is not an unprimeable number, because it can be changed into a prime (2290328129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104879 + ... + 124820.

It is an arithmetic number, because the mean of its divisors is an integer number (210175500).

Almost surely, 2^2290328729 is an apocalyptic number.

It is an amenable number.

2290328729 is a deficient number, since it is larger than the sum of its proper divisors (231777271).

2290328729 is a wasteful number, since it uses less digits than its factorization.

2290328729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229784 (or 229771 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 2290328729 is about 47857.3790444065. The cubic root of 2290328729 is about 1318.1533576962.

The spelling of 2290328729 in words is "two billion, two hundred ninety million, three hundred twenty-eight thousand, seven hundred twenty-nine".