438161908482 has 48 divisors (see below), whose sum is σ = 1001475346560. Its totient is φ = 138068019936.

The previous prime is 438161908477. The next prime is 438161908517. The reversal of 438161908482 is 284809161834.

It is a happy number.

438161908482 is a `hidden beast` number, since 438 + 16 + 190 + 8 + 4 + 8 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1225213 + ... + 1541904.

It is an arithmetic number, because the mean of its divisors is an integer number (20864069720).

Almost surely, 2^438161908482 is an apocalyptic number.

438161908482 is an abundant number, since it is smaller than the sum of its proper divisors (563313438078).

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

438161908482 is a wasteful number, since it uses less digits than its factorization.

438161908482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767607 (or 2767604 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 438161908482 in words is "four hundred thirty-eight billion, one hundred sixty-one million, nine hundred eight thousand, four hundred eighty-two".