44424540 has 36 divisors (see below), whose sum is σ = 134754984. Its totient is φ = 11846496.

The previous prime is 44424533. The next prime is 44424557. The reversal of 44424540 is 4542444.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123222 + ... + 123581.

It is an arithmetic number, because the mean of its divisors is an integer number (3743194).

Almost surely, 2^44424540 is an apocalyptic number.

It is an amenable number.

44424540 is an abundant number, since it is smaller than the sum of its proper divisors (90330444).

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

44424540 is a wasteful number, since it uses less digits than its factorization.

44424540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246818 (or 246813 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 44424540 is about 6665.1736661545. The cubic root of 44424540 is about 354.1666360938.

Adding to 44424540 its reverse (4542444), we get a palindrome (48966984).

The spelling of 44424540 in words is "forty-four million, four hundred twenty-four thousand, five hundred forty".