1630730074 has 4 divisors (see below), whose sum is σ = 2446095114. Its totient is φ = 815365036.

The previous prime is 1630730041. The next prime is 1630730099. The reversal of 1630730074 is 4700370361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4700370361 = 79 ⋅59498359.

It can be written as a sum of positive squares in only one way, i.e., 1568714449 + 62015625 = 39607^2 + 7875^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407682517 + ... + 407682520.

Almost surely, 2^1630730074 is an apocalyptic number.

1630730074 is a deficient number, since it is larger than the sum of its proper divisors (815365040).

1630730074 is an equidigital number, since it uses as much as digits as its factorization.

1630730074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815365039.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 1630730074 is about 40382.2990182580. The cubic root of 1630730074 is about 1177.0476019292.

The spelling of 1630730074 in words is "one billion, six hundred thirty million, seven hundred thirty thousand, seventy-four".