20270233 has 4 divisors (see below), whose sum is σ = 20280100. Its totient is φ = 20260368.

The previous prime is 20270203. The next prime is 20270251. The reversal of 20270233 is 33207202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 19474569 + 795664 = 4413^2 + 892^2 .

It is a cyclic number.

It is not a de Polignac number, because 20270233 - 2⁹ = 20269721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20270233.

It is not an unprimeable number, because it can be changed into a prime (20270203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (5070025).

Almost surely, 2^20270233 is an apocalyptic number.

It is an amenable number.

20270233 is a deficient number, since it is larger than the sum of its proper divisors (9867).

20270233 is an equidigital number, since it uses as much as digits as its factorization.

20270233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9866.

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

The square root of 20270233 is about 4502.2475498355. The cubic root of 20270233 is about 272.6588384625.

Adding to 20270233 its reverse (33207202), we get a palindrome (53477435).

It can be divided in two parts, 20270 and 233, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20270233 in words is "twenty million, two hundred seventy thousand, two hundred thirty-three".