44140428 has 36 divisors (see below), whose sum is σ = 111781488. Its totient is φ = 14686560.

The previous prime is 44140417. The next prime is 44140429. The reversal of 44140428 is 82404144.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (44140429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33225 + ... + 34527.

Almost surely, 2^44140428 is an apocalyptic number.

It is an amenable number.

44140428 is an abundant number, since it is smaller than the sum of its proper divisors (67641060).

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

44140428 is a wasteful number, since it uses less digits than its factorization.

44140428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 44140428 is about 6643.8263071817. The cubic root of 44140428 is about 353.4100102568.

The spelling of 44140428 in words is "forty-four million, one hundred forty thousand, four hundred twenty-eight".