2728473730 has 16 divisors (see below), whose sum is σ = 4938693120. Its totient is φ = 1085291632.

The previous prime is 2728473719. The next prime is 2728473749. The reversal of 2728473730 is 373748272.

It is a super-2 number, since 2×2728473730² = 14889137790600225800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760354 + ... + 763933.

It is an arithmetic number, because the mean of its divisors is an integer number (308668320).

Almost surely, 2^2728473730 is an apocalyptic number.

2728473730 is a deficient number, since it is larger than the sum of its proper divisors (2210219390).

2728473730 is a wasteful number, since it uses less digits than its factorization.

2728473730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524473.

The product of its (nonzero) digits is 395136, while the sum is 43.

The square root of 2728473730 is about 52234.7942467471. The cubic root of 2728473730 is about 1397.3544819215.

The spelling of 2728473730 in words is "two billion, seven hundred twenty-eight million, four hundred seventy-three thousand, seven hundred thirty".