43442255540 has 24 divisors (see below), whose sum is σ = 91491658272. Its totient is φ = 17326821920.

The previous prime is 43442255539. The next prime is 43442255561. The reversal of 43442255540 is 4555224434.

43442255540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43442255494 and 43442255503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3122906 + ... + 3136785.

It is an arithmetic number, because the mean of its divisors is an integer number (3812152428).

Almost surely, 2^43442255540 is an apocalyptic number.

It is an amenable number.

43442255540 is an abundant number, since it is smaller than the sum of its proper divisors (48049402732).

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

43442255540 is a wasteful number, since it uses less digits than its factorization.

43442255540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260047 (or 6260045 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

Adding to 43442255540 its reverse (4555224434), we get a palindrome (47997479974).

The spelling of 43442255540 in words is "forty-three billion, four hundred forty-two million, two hundred fifty-five thousand, five hundred forty".