1689330044 has 12 divisors (see below), whose sum is σ = 2974465704. Its totient is φ = 839482704.

The previous prime is 1689330029. The next prime is 1689330047. The reversal of 1689330044 is 4400339861.

It is a super-2 number, since 2×1689330044² = 5707671995122083872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689330047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1294847 + ... + 1296150.

It is an arithmetic number, because the mean of its divisors is an integer number (247872142).

Almost surely, 2^1689330044 is an apocalyptic number.

It is an amenable number.

1689330044 is a deficient number, since it is larger than the sum of its proper divisors (1285135660).

1689330044 is a wasteful number, since it uses less digits than its factorization.

1689330044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591164 (or 2591162 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1689330044 is about 41101.4603633496. The cubic root of 1689330044 is about 1190.9810059049.

The spelling of 1689330044 in words is "one billion, six hundred eighty-nine million, three hundred thirty thousand, forty-four".