20133270 has 48 divisors (see below), whose sum is σ = 55429920. Its totient is φ = 5052672.

The previous prime is 20133251. The next prime is 20133277. The reversal of 20133270 is 7233102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133277) 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 23 ways as a sum of consecutive naturals, for example, 5050 + ... + 8109.

It is an arithmetic number, because the mean of its divisors is an integer number (1154790).

Almost surely, 2^20133270 is an apocalyptic number.

20133270 is an abundant number, since it is smaller than the sum of its proper divisors (35296650).

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

20133270 is a wasteful number, since it uses less digits than its factorization.

20133270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13189 (or 13186 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 20133270 is about 4487.0112547218. The cubic root of 20133270 is about 272.0433448081.

Adding to 20133270 its reverse (7233102), we get a palindrome (27366372).

The spelling of 20133270 in words is "twenty million, one hundred thirty-three thousand, two hundred seventy".