2789730 has 48 divisors (see below), whose sum is σ = 7338240. Its totient is φ = 735264.

The previous prime is 2789729. The next prime is 2789747. The reversal of 2789730 is 379872.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12399 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (152880).

2^2789730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2789730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3669120).

2789730 is an abundant number, since it is smaller than the sum of its proper divisors (4548510).

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

2789730 is a wasteful number, since it uses less digits than its factorization.

2789730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 2789730 is about 1670.2484845076. The cubic root of 2789730 is about 140.7734402920.

The spelling of 2789730 in words is "two million, seven hundred eighty-nine thousand, seven hundred thirty".