1630230520 has 64 divisors (see below), whose sum is σ = 3766240800. Its totient is φ = 634705920.

The previous prime is 1630230517. The next prime is 1630230523. The reversal of 1630230520 is 250320361.

It is an interprime number because it is at equal distance from previous prime (1630230517) and next prime (1630230523).

It is a junction number, because it is equal to n+sod(n) for n = 1630230491 and 1630230500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630230523) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 932287 + ... + 934033.

Almost surely, 2^1630230520 is an apocalyptic number.

1630230520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630230520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1883120400).

1630230520 is an abundant number, since it is smaller than the sum of its proper divisors (2136010280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1630230520 is a wasteful number, since it uses less digits than its factorization.

1630230520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1630230520 is about 40376.1132354267. The cubic root of 1630230520 is about 1176.9273983264.

Adding to 1630230520 its reverse (250320361), we get a palindrome (1880550881).

The spelling of 1630230520 in words is "one billion, six hundred thirty million, two hundred thirty thousand, five hundred twenty".