405134908338 has 32 divisors (see below), whose sum is σ = 816022834560. Its totient is φ = 134086982400.

The previous prime is 405134908331. The next prime is 405134908361. The reversal of 405134908338 is 833809431504.

It is not an unprimeable number, because it can be changed into a prime (405134908331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1823856 + ... + 2033892.

It is an arithmetic number, because the mean of its divisors is an integer number (25500713580).

Almost surely, 2^405134908338 is an apocalyptic number.

405134908338 is an abundant number, since it is smaller than the sum of its proper divisors (410887926222).

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

405134908338 is a wasteful number, since it uses less digits than its factorization.

405134908338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212322.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 405134908338 in words is "four hundred five billion, one hundred thirty-four million, nine hundred eight thousand, three hundred thirty-eight".