20327650 has 36 divisors (see below), whose sum is σ = 43987698. Its totient is φ = 6968640.

The previous prime is 20327639. The next prime is 20327687. The reversal of 20327650 is 5672302.

It can be written as a sum of positive squares in 3 ways, for example, as 19633761 + 693889 = 4431^2 + 833^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1699 + ... + 6598.

Almost surely, 2^20327650 is an apocalyptic number.

20327650 is an abundant number, since it is smaller than the sum of its proper divisors (23660048).

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

20327650 is a wasteful number, since it uses less digits than its factorization.

20327650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8323 (or 8311 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 20327650 is about 4508.6195226477. The cubic root of 20327650 is about 272.9160381730.

Adding to 20327650 its reverse (5672302), we get a palindrome (25999952).

The spelling of 20327650 in words is "twenty million, three hundred twenty-seven thousand, six hundred fifty".