400008989058308 has 18 divisors (see below), whose sum is σ = 814304013440526. Its totient is φ = 171432423882048.

The previous prime is 400008989058307. The next prime is 400008989058313. The reversal of 400008989058308 is 803850989800004.

It can be written as a sum of positive squares in only one way, i.e., 310396108635844 + 89612880422464 = 17618062^2 + 9466408^2 .

It is not an unprimeable number, because it can be changed into a prime (400008989058307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1020431094341 + ... + 1020431094732.

It is an arithmetic number, because the mean of its divisors is an integer number (45239111857807).

Almost surely, 2^{400008989058308} is an apocalyptic number.

It is an amenable number.

400008989058308 is an abundant number, since it is smaller than the sum of its proper divisors (414295024382218).

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

400008989058308 is a wasteful number, since it uses less digits than its factorization.

400008989058308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040862189091 (or 2040862189082 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 62.

The spelling of 400008989058308 in words is "four hundred trillion, eight billion, nine hundred eighty-nine million, fifty-eight thousand, three hundred eight".