398741882 has 16 divisors (see below), whose sum is σ = 745699392. Its totient is φ = 155353920.

The previous prime is 398741873. The next prime is 398741887. The reversal of 398741882 is 288147893.

It is a self number, because there is not a number n which added to its sum of digits gives 398741882.

It is not an unprimeable number, because it can be changed into a prime (398741887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294463 + ... + 1294770.

It is an arithmetic number, because the mean of its divisors is an integer number (46606212).

Almost surely, 2^398741882 is an apocalyptic number.

398741882 is a deficient number, since it is larger than the sum of its proper divisors (346957510).

398741882 is a wasteful number, since it uses less digits than its factorization.

398741882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589253.

The product of its digits is 774144, while the sum is 50.

The square root of 398741882 is about 19968.5222788267. The cubic root of 398741882 is about 736.0329973490.

The spelling of 398741882 in words is "three hundred ninety-eight million, seven hundred forty-one thousand, eight hundred eighty-two".