398493399082 has 8 divisors (see below), whose sum is σ = 597749688000. Its totient is φ = 199243503084.

The previous prime is 398493399047. The next prime is 398493399089. The reversal of 398493399082 is 280993394893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×398493399082² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 398493398999 and 398493399017.

It is not an unprimeable number, because it can be changed into a prime (398493399089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439232 + ... + 1693627.

It is an arithmetic number, because the mean of its divisors is an integer number (74718711000).

Almost surely, 2^398493399082 is an apocalyptic number.

398493399082 is a deficient number, since it is larger than the sum of its proper divisors (199256288918).

398493399082 is a wasteful number, since it uses less digits than its factorization.

398493399082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196460.

The product of its (nonzero) digits is 90699264, while the sum is 67.

The spelling of 398493399082 in words is "three hundred ninety-eight billion, four hundred ninety-three million, three hundred ninety-nine thousand, eighty-two".