20632330 has 16 divisors (see below), whose sum is σ = 37210824. Its totient is φ = 8236800.

The previous prime is 20632327. The next prime is 20632333. The reversal of 20632330 is 3323602.

It is an interprime number because it is at equal distance from previous prime (20632327) and next prime (20632333).

It can be written as a sum of positive squares in 4 ways, for example, as 18037009 + 2595321 = 4247^2 + 1611^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20632298 and 20632307.

It is not an unprimeable number, because it can be changed into a prime (20632333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4294 + ... + 7726.

Almost surely, 2^20632330 is an apocalyptic number.

20632330 is a deficient number, since it is larger than the sum of its proper divisors (16578494).

20632330 is a wasteful number, since it uses less digits than its factorization.

20632330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 20632330 is about 4542.2824658975. The cubic root of 20632330 is about 274.2728115572.

Adding to 20632330 its reverse (3323602), we get a palindrome (23955932).

The spelling of 20632330 in words is "twenty million, six hundred thirty-two thousand, three hundred thirty".