44021253 has 4 divisors (see below), whose sum is σ = 58695008. Its totient is φ = 29347500.

The previous prime is 44021239. The next prime is 44021261. The reversal of 44021253 is 35212044.

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 44021253 - 2⁶ = 44021189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44021213) 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, 7336873 + ... + 7336878.

It is an arithmetic number, because the mean of its divisors is an integer number (14673752).

Almost surely, 2^44021253 is an apocalyptic number.

It is an amenable number.

44021253 is a deficient number, since it is larger than the sum of its proper divisors (14673755).

44021253 is a wasteful number, since it uses less digits than its factorization.

44021253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14673754.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 44021253 is about 6634.8513924579. The cubic root of 44021253 is about 353.0916656659.

Adding to 44021253 its reverse (35212044), we get a palindrome (79233297).

The spelling of 44021253 in words is "forty-four million, twenty-one thousand, two hundred fifty-three".