3628009642 has 16 divisors (see below), whose sum is σ = 5510284200. Its totient is φ = 1791389632.

The previous prime is 3628009601. The next prime is 3628009669. The reversal of 3628009642 is 2469008263.

It can be written as a sum of positive squares in 4 ways, for example, as 1999967841 + 1628041801 = 44721^2 + 40349^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3628009595 and 3628009604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16368 + ... + 86740.

Almost surely, 2^3628009642 is an apocalyptic number.

3628009642 is a deficient number, since it is larger than the sum of its proper divisors (1882274558).

3628009642 is a wasteful number, since it uses less digits than its factorization.

3628009642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70697.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 3628009642 is about 60232.9614247880. The cubic root of 3628009642 is about 1536.5834250709.

The spelling of 3628009642 in words is "three billion, six hundred twenty-eight million, nine thousand, six hundred forty-two".