4405123205440 has 56 divisors (see below), whose sum is σ = 11041789102560. Its totient is φ = 1669309843968.

The previous prime is 4405123205411. The next prime is 4405123205467. The reversal of 4405123205440 is 445023215044.

It is a super-2 number, since 2×4405123205440² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4405123205396 and 4405123205405.

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, 362257342 + ... + 362269501.

Almost surely, 2^{4405123205440} is an apocalyptic number.

4405123205440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4405123205440 is an abundant number, since it is smaller than the sum of its proper divisors (6636665897120).

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

4405123205440 is a wasteful number, since it uses less digits than its factorization.

4405123205440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724526879 (or 724526869 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 4405123205440 in words is "four trillion, four hundred five billion, one hundred twenty-three million, two hundred five thousand, four hundred forty".