398489046 has 8 divisors (see below), whose sum is σ = 796978104. Its totient is φ = 132829680.

The previous prime is 398489017. The next prime is 398489051. The reversal of 398489046 is 640984893.

It is a happy number.

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

398489046 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 398489046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33207415 + ... + 33207426.

It is an arithmetic number, because the mean of its divisors is an integer number (99622263).

Almost surely, 2^398489046 is an apocalyptic number.

398489046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

398489046 is a wasteful number, since it uses less digits than its factorization.

398489046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66414846.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 398489046 is about 19962.1904108743. The cubic root of 398489046 is about 735.8773954466.

The spelling of 398489046 in words is "three hundred ninety-eight million, four hundred eighty-nine thousand, forty-six".