1728469396 has 6 divisors (see below), whose sum is σ = 3024821450. Its totient is φ = 864234696.

The previous prime is 1728469331. The next prime is 1728469423. The reversal of 1728469396 is 6939648271.

It can be written as a sum of positive squares in only one way, i.e., 1728064900 + 404496 = 41570^2 + 636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216058671 + ... + 216058678.

Almost surely, 2^1728469396 is an apocalyptic number.

It is an amenable number.

1728469396 is a deficient number, since it is larger than the sum of its proper divisors (1296352054).

1728469396 is a wasteful number, since it uses less digits than its factorization.

1728469396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432117353 (or 432117351 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The square root of 1728469396 is about 41574.8649546815. The cubic root of 1728469396 is about 1200.1086466444.

The spelling of 1728469396 in words is "one billion, seven hundred twenty-eight million, four hundred sixty-nine thousand, three hundred ninety-six".