244261021 has 8 divisors (see below), whose sum is σ = 249698304. Its totient is φ = 238833840.

The previous prime is 244261009. The next prime is 244261037. The reversal of 244261021 is 120162442.

It is a happy number.

244261021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244261021 - 2¹⁵ = 244228253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244260983 and 244261001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244261051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67371 + ... + 70903.

It is an arithmetic number, because the mean of its divisors is an integer number (31212288).

Almost surely, 2^244261021 is an apocalyptic number.

It is an amenable number.

244261021 is a deficient number, since it is larger than the sum of its proper divisors (5437283).

244261021 is a wasteful number, since it uses less digits than its factorization.

244261021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 244261021 is about 15628.8521971385. The cubic root of 244261021 is about 625.1027210365.

Subtracting from 244261021 its product of nonzero digits (768), we obtain a triangular number (244260253 = T₂₂₁₀₂).

The spelling of 244261021 in words is "two hundred forty-four million, two hundred sixty-one thousand, twenty-one".