1630790039 has 4 divisors (see below), whose sum is σ = 1646623056. Its totient is φ = 1614957024.

The previous prime is 1630790033. The next prime is 1630790041. The reversal of 1630790039 is 9300970361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1630790039 - 2⁴ = 1630790023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1630789984 and 1630790011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630790033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7916354 + ... + 7916559.

It is an arithmetic number, because the mean of its divisors is an integer number (411655764).

Almost surely, 2^1630790039 is an apocalyptic number.

1630790039 is a deficient number, since it is larger than the sum of its proper divisors (15833017).

1630790039 is a wasteful number, since it uses less digits than its factorization.

1630790039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15833016.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 1630790039 is about 40383.0414778283. The cubic root of 1630790039 is about 1177.0620291675.

The spelling of 1630790039 in words is "one billion, six hundred thirty million, seven hundred ninety thousand, thirty-nine".