44013455540 has 48 divisors (see below), whose sum is σ = 97802449920. Its totient is φ = 16591432320.

The previous prime is 44013455537. The next prime is 44013455557. The reversal of 44013455540 is 4555431044.

It is a self number, because there is not a number n which added to its sum of digits gives 44013455540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230627 + ... + 375786.

It is an arithmetic number, because the mean of its divisors is an integer number (2037551040).

Almost surely, 2^44013455540 is an apocalyptic number.

It is an amenable number.

44013455540 is an abundant number, since it is smaller than the sum of its proper divisors (53788994380).

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

44013455540 is a wasteful number, since it uses less digits than its factorization.

44013455540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606632 (or 606630 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 44013455540 its reverse (4555431044), we get a palindrome (48568886584).

The spelling of 44013455540 in words is "forty-four billion, thirteen million, four hundred fifty-five thousand, five hundred forty".