1630233733 has 4 divisors (see below), whose sum is σ = 1630368000. Its totient is φ = 1630099468.

The previous prime is 1630233713. The next prime is 1630233739. The reversal of 1630233733 is 3373320361.

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 1630233733 - 2²⁹ = 1093362821 is a prime.

It is a super-2 number, since 2×1630233733² = 5315324048422230578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1630233695 and 1630233704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630233739) 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 3 ways as a sum of consecutive naturals, for example, 46885 + ... + 73882.

It is an arithmetic number, because the mean of its divisors is an integer number (407592000).

Almost surely, 2^1630233733 is an apocalyptic number.

It is an amenable number.

1630233733 is a deficient number, since it is larger than the sum of its proper divisors (134267).

1630233733 is a wasteful number, since it uses less digits than its factorization.

1630233733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134266.

The product of its (nonzero) digits is 20412, while the sum is 31.

The square root of 1630233733 is about 40376.1530237837. The cubic root of 1630233733 is about 1176.9281715229.

The spelling of 1630233733 in words is "one billion, six hundred thirty million, two hundred thirty-three thousand, seven hundred thirty-three".