1630290389 has 16 divisors (see below), whose sum is σ = 2026389120. Its totient is φ = 1277121600.

The previous prime is 1630290379. The next prime is 1630290397. The reversal of 1630290389 is 9830920361.

It is a cyclic number.

It is not a de Polignac number, because 1630290389 - 2⁸ = 1630290133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630290359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79499 + ... + 97880.

It is an arithmetic number, because the mean of its divisors is an integer number (126649320).

Almost surely, 2^1630290389 is an apocalyptic number.

It is an amenable number.

1630290389 is a deficient number, since it is larger than the sum of its proper divisors (396098731).

1630290389 is a wasteful number, since it uses less digits than its factorization.

1630290389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177500.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 1630290389 is about 40376.8546199428. The cubic root of 1630290389 is about 1176.9418054104.

The spelling of 1630290389 in words is "one billion, six hundred thirty million, two hundred ninety thousand, three hundred eighty-nine".