1829972728 has 16 divisors (see below), whose sum is σ = 3444872760. Its totient is φ = 911340000.

The previous prime is 1829972717. The next prime is 1829972741. The reversal of 1829972728 is 8272799281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453663 + ... + 457678.

Almost surely, 2^1829972728 is an apocalyptic number.

It is an amenable number.

1829972728 is a deficient number, since it is larger than the sum of its proper divisors (1614900032).

1829972728 is a wasteful number, since it uses less digits than its factorization.

1829972728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911598 (or 911594 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The square root of 1829972728 is about 42778.1805129671. The cubic root of 1829972728 is about 1223.1551245149.

The spelling of 1829972728 in words is "one billion, eight hundred twenty-nine million, nine hundred seventy-two thousand, seven hundred twenty-eight".