338443102640 has 80 divisors (see below), whose sum is σ = 818659983360. Its totient is φ = 129978535680.

The previous prime is 338443102567. The next prime is 338443102643. The reversal of 338443102640 is 46201344833.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×338443102640² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338443102594 and 338443102603.

It is not an unprimeable number, because it can be changed into a prime (338443102643) 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, 222320 + ... + 852239.

It is an arithmetic number, because the mean of its divisors is an integer number (10233249792).

Almost surely, 2^338443102640 is an apocalyptic number.

It is an amenable number.

338443102640 is an abundant number, since it is smaller than the sum of its proper divisors (480216880720).

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

338443102640 is a wasteful number, since it uses less digits than its factorization.

338443102640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074730 (or 1074724 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 338443102640 in words is "three hundred thirty-eight billion, four hundred forty-three million, one hundred two thousand, six hundred forty".