1604216626 has 16 divisors (see below), whose sum is σ = 2534189760. Its totient is φ = 759527280.

The previous prime is 1604216587. The next prime is 1604216639. The reversal of 1604216626 is 6266124061.

It is a junction number, because it is equal to n+sod(n) for n = 1604216591 and 1604216600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80611 + ... + 98521.

It is an arithmetic number, because the mean of its divisors is an integer number (158386860).

Almost surely, 2^1604216626 is an apocalyptic number.

1604216626 is a deficient number, since it is larger than the sum of its proper divisors (929973134).

1604216626 is a wasteful number, since it uses less digits than its factorization.

1604216626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20289.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1604216626 is about 40052.6731442484. The cubic root of 1604216626 is about 1170.6336514551.

The spelling of 1604216626 in words is "one billion, six hundred four million, two hundred sixteen thousand, six hundred twenty-six".