44020013040 has 120 divisors (see below), whose sum is σ = 150040517328. Its totient is φ = 11563453440.

The previous prime is 44020013039. The next prime is 44020013069. The reversal of 44020013040 is 4031002044.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408021 + ... + 504500.

Almost surely, 2^44020013040 is an apocalyptic number.

44020013040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44020013040 is an abundant number, since it is smaller than the sum of its proper divisors (106020504288).

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

44020013040 is a wasteful number, since it uses less digits than its factorization.

44020013040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912607 (or 912598 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 44020013040 its reverse (4031002044), we get a palindrome (48051015084).

The spelling of 44020013040 in words is "forty-four billion, twenty million, thirteen thousand, forty".