398550300040 has 32 divisors (see below), whose sum is σ = 899181636480. Its totient is φ = 158985726912.

The previous prime is 398550300019. The next prime is 398550300059. The reversal of 398550300040 is 40003055893.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13559922 + ... + 13589281.

It is an arithmetic number, because the mean of its divisors is an integer number (28099426140).

Almost surely, 2^398550300040 is an apocalyptic number.

It is an amenable number.

398550300040 is an abundant number, since it is smaller than the sum of its proper divisors (500631336440).

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

398550300040 is a wasteful number, since it uses less digits than its factorization.

398550300040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27149581 (or 27149577 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 398550300040 in words is "three hundred ninety-eight billion, five hundred fifty million, three hundred thousand, forty".