244132021 has 4 divisors (see below), whose sum is σ = 279008032. Its totient is φ = 209256012.

The previous prime is 244132013. The next prime is 244132033. The reversal of 244132021 is 120231442.

244132021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 244132021 - 2³ = 244132013 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 244132021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244132061) 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, 17437995 + ... + 17438008.

It is an arithmetic number, because the mean of its divisors is an integer number (69752008).

Almost surely, 2^244132021 is an apocalyptic number.

It is an amenable number.

244132021 is a deficient number, since it is larger than the sum of its proper divisors (34876011).

244132021 is an equidigital number, since it uses as much as digits as its factorization.

244132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34876010.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 244132021 is about 15624.7246695742. The cubic root of 244132021 is about 624.9926578337.

Adding to 244132021 its reverse (120231442), we get a palindrome (364363463).

The spelling of 244132021 in words is "two hundred forty-four million, one hundred thirty-two thousand, twenty-one".