1630330361 has 4 divisors (see below), whose sum is σ = 1778542224. Its totient is φ = 1482118500.

The previous prime is 1630330349. The next prime is 1630330399.

1630330361 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1630330361 - 2¹⁴ = 1630313977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1630330361.

It is not an unprimeable number, because it can be changed into a prime (1630335361) 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, 74105915 + ... + 74105936.

It is an arithmetic number, because the mean of its divisors is an integer number (444635556).

Almost surely, 2^1630330361 is an apocalyptic number.

1630330361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1630330361 is a deficient number, since it is larger than the sum of its proper divisors (148211863).

1630330361 is a wasteful number, since it uses less digits than its factorization.

1630330361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148211862.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 1630330361 is about 40377.3496034596. The cubic root of 1630330361 is about 1176.9514242148.

It can be divided in two parts, 16303 and 30361, that added together give a palindrome (46664).

The spelling of 1630330361 in words is "one billion, six hundred thirty million, three hundred thirty thousand, three hundred sixty-one".