405542107140 has 48 divisors (see below), whose sum is σ = 1139708048640. Its totient is φ = 107745500160.

The previous prime is 405542107129. The next prime is 405542107147. The reversal of 405542107140 is 41701245504.

It is not an unprimeable number, because it can be changed into a prime (405542107147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12454285 + ... + 12486804.

It is an arithmetic number, because the mean of its divisors is an integer number (23743917680).

Almost surely, 2^405542107140 is an apocalyptic number.

It is an amenable number.

405542107140 is an abundant number, since it is smaller than the sum of its proper divisors (734165941500).

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

405542107140 is a wasteful number, since it uses less digits than its factorization.

405542107140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24941372 (or 24941370 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The spelling of 405542107140 in words is "four hundred five billion, five hundred forty-two million, one hundred seven thousand, one hundred forty".