1729019044 has 12 divisors (see below), whose sum is σ = 3027643164. Its totient is φ = 863978144.

The previous prime is 1729019041. The next prime is 1729019059. The reversal of 1729019044 is 4409109271.

It can be written as a sum of positive squares in 2 ways, for example, as 265038400 + 1463980644 = 16280^2 + 38262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1729018994 and 1729019012.

It is not an unprimeable number, because it can be changed into a prime (1729019041) 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, 125479 + ... + 138574.

It is an arithmetic number, because the mean of its divisors is an integer number (252303597).

Almost surely, 2^1729019044 is an apocalyptic number.

It is an amenable number.

1729019044 is a deficient number, since it is larger than the sum of its proper divisors (1298624120).

1729019044 is a wasteful number, since it uses less digits than its factorization.

1729019044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265694 (or 265692 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1729019044 is about 41581.4747694211. The cubic root of 1729019044 is about 1200.2358434600.

The spelling of 1729019044 in words is "one billion, seven hundred twenty-nine million, nineteen thousand, forty-four".