44253140 has 12 divisors (see below), whose sum is σ = 92931636. Its totient is φ = 17701248.

The previous prime is 44253137. The next prime is 44253161. The reversal of 44253140 is 4135244.

It can be written as a sum of positive squares in 2 ways, for example, as 13205956 + 31047184 = 3634^2 + 5572^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106309 + ... + 1106348.

It is an arithmetic number, because the mean of its divisors is an integer number (7744303).

Almost surely, 2^44253140 is an apocalyptic number.

It is an amenable number.

44253140 is an abundant number, since it is smaller than the sum of its proper divisors (48678496).

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

44253140 is a wasteful number, since it uses less digits than its factorization.

44253140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212666 (or 2212664 counting only the distinct ones).

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

The square root of 44253140 is about 6652.3033604910. The cubic root of 44253140 is about 353.7105638466.

Adding to 44253140 its reverse (4135244), we get a palindrome (48388384).

The spelling of 44253140 in words is "forty-four million, two hundred fifty-three thousand, one hundred forty".