44140253 has 4 divisors (see below), whose sum is σ = 44744988. Its totient is φ = 43535520.

The previous prime is 44140183. The next prime is 44140267. The reversal of 44140253 is 35204144.

44140253 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.

It can be written as a sum of positive squares in 2 ways, for example, as 8773444 + 35366809 = 2962^2 + 5947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44140253 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 (44140273) 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 3 ways as a sum of consecutive naturals, for example, 302258 + ... + 302403.

It is an arithmetic number, because the mean of its divisors is an integer number (11186247).

Almost surely, 2^44140253 is an apocalyptic number.

It is an amenable number.

44140253 is a deficient number, since it is larger than the sum of its proper divisors (604735).

44140253 is an equidigital number, since it uses as much as digits as its factorization.

44140253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604734.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 44140253 is about 6643.8131370471. The cubic root of 44140253 is about 353.4095432108.

Adding to 44140253 its reverse (35204144), we get a palindrome (79344397).

The spelling of 44140253 in words is "forty-four million, one hundred forty thousand, two hundred fifty-three".