20272330 has 32 divisors (see below), whose sum is σ = 41613264. Its totient is φ = 7044096.

The previous prime is 20272309. The next prime is 20272339. The reversal of 20272330 is 3327202.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2455489 + 17816841 = 1567^2 + 4221^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20272298 and 20272307.

It is not an unprimeable number, because it can be changed into a prime (20272339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377 + ... + 6796.

Almost surely, 2^20272330 is an apocalyptic number.

20272330 is an abundant number, since it is smaller than the sum of its proper divisors (21340934).

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

20272330 is a wasteful number, since it uses less digits than its factorization.

20272330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 20272330 is about 4502.4804274977. The cubic root of 20272330 is about 272.6682405230.

Adding to 20272330 its reverse (3327202), we get a palindrome (23599532).

It can be divided in two parts, 20272 and 330, that added together give a palindrome (20602).

The spelling of 20272330 in words is "twenty million, two hundred seventy-two thousand, three hundred thirty".