398508294 has 8 divisors (see below), whose sum is σ = 797016600. Its totient is φ = 132836096.

The previous prime is 398508293. The next prime is 398508329. The reversal of 398508294 is 492805893.

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

398508294 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398508293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33209019 + ... + 33209030.

It is an arithmetic number, because the mean of its divisors is an integer number (99627075).

Almost surely, 2^398508294 is an apocalyptic number.

398508294 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.

398508294 is a wasteful number, since it uses less digits than its factorization.

398508294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66418054.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 398508294 is about 19962.6725164743. The cubic root of 398508294 is about 735.8892434845.

The spelling of 398508294 in words is "three hundred ninety-eight million, five hundred eight thousand, two hundred ninety-four".