3646728130 has 8 divisors (see below), whose sum is σ = 6564110652. Its totient is φ = 1458691248.

The previous prime is 3646728079. The next prime is 3646728179. The reversal of 3646728130 is 318276463.

It can be written as a sum of positive squares in 2 ways, for example, as 3251394441 + 395333689 = 57021^2 + 19883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182336397 + ... + 182336416.

Almost surely, 2^3646728130 is an apocalyptic number.

3646728130 is a deficient number, since it is larger than the sum of its proper divisors (2917382522).

3646728130 is a wasteful number, since it uses less digits than its factorization.

3646728130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364672820.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 3646728130 is about 60388.1456082235. The cubic root of 3646728130 is about 1539.2215284574.

The spelling of 3646728130 in words is "three billion, six hundred forty-six million, seven hundred twenty-eight thousand, one hundred thirty".