1630490629 has 2 divisors, whose sum is σ = 1630490630. Its totient is φ = 1630490628.

The previous prime is 1630490623. The next prime is 1630490651. The reversal of 1630490629 is 9260940361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1568001604 + 62489025 = 39598^2 + 7905^2 .

It is an emirp because it is prime and its reverse (9260940361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1630490629 - 2⁵ = 1630490597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630490591 and 1630490600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630490623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815245314 + 815245315.

It is an arithmetic number, because the mean of its divisors is an integer number (815245315).

Almost surely, 2^1630490629 is an apocalyptic number.

It is an amenable number.

1630490629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630490629 is an equidigital number, since it uses as much as digits as its factorization.

1630490629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 1630490629 is about 40379.3341822274. The cubic root of 1630490629 is about 1176.9899892964.

The spelling of 1630490629 in words is "one billion, six hundred thirty million, four hundred ninety thousand, six hundred twenty-nine".