20032630 has 16 divisors (see below), whose sum is σ = 38180160. Its totient is φ = 7541632.

The previous prime is 20032627. The next prime is 20032633. The reversal of 20032630 is 3623002.

It is an interprime number because it is at equal distance from previous prime (20032627) and next prime (20032633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032633) 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 7 ways as a sum of consecutive naturals, for example, 58750 + ... + 59089.

It is an arithmetic number, because the mean of its divisors is an integer number (2386260).

Almost surely, 2^20032630 is an apocalyptic number.

20032630 is a deficient number, since it is larger than the sum of its proper divisors (18147530).

20032630 is a wasteful number, since it uses less digits than its factorization.

20032630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117863.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20032630 is about 4475.7826131304. The cubic root of 20032630 is about 271.5893005301.

Adding to 20032630 its reverse (3623002), we get a palindrome (23655632).

The spelling of 20032630 in words is "twenty million, thirty-two thousand, six hundred thirty".