2689044736 has 81 divisors (see below), whose sum is σ = 6257440791. Its totient is φ = 1149958656.

The previous prime is 2689044731. The next prime is 2689044763. The reversal of 2689044736 is 6374409862.

The square root of 2689044736 is 51856.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×2689044736³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 2689044736.

It is not an unprimeable number, because it can be changed into a prime (2689044731) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5807641 + ... + 5808103.

Almost surely, 2^2689044736 is an apocalyptic number.

2689044736 is the 51856-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2689044736

2689044736 is an abundant number, since it is smaller than the sum of its proper divisors (3568396055).

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

2689044736 is an frugal number, since it uses more digits than its factorization.

2689044736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The cubic root of 2689044736 is about 1390.5907700473.

Multiplying 2689044736 by its sum of digits (49), we get a square (131763192064 = 362992²).

2689044736 divided by its sum of digits (49) gives a square (54878464 = 7408²).

The spelling of 2689044736 in words is "two billion, six hundred eighty-nine million, forty-four thousand, seven hundred thirty-six".