43542015022440 has 384 divisors, whose sum is σ = 163471976478720. Its totient is φ = 9933821337600.

The previous prime is 43542015022421. The next prime is 43542015022453. The reversal of 43542015022440 is 4422051024534.

43542015022440 is a `hidden beast` number, since 4 + 3 + 5 + 4 + 201 + 5 + 0 + 2 + 2 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43542015022395 and 43542015022404.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 996112185 + ... + 996155895.

It is an arithmetic number, because the mean of its divisors is an integer number (425708272080).

Almost surely, 2^{43542015022440} is an apocalyptic number.

43542015022440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43542015022440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81735988239360).

43542015022440 is an abundant number, since it is smaller than the sum of its proper divisors (119929961456280).

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

43542015022440 is a wasteful number, since it uses less digits than its factorization.

43542015022440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58553 (or 58546 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 43542015022440 its reverse (4422051024534), we get a palindrome (47964066046974).

The spelling of 43542015022440 in words is "forty-three trillion, five hundred forty-two billion, fifteen million, twenty-two thousand, four hundred forty".