398249068 has 30 divisors (see below), whose sum is σ = 813063076. Its totient is φ = 170674056.

The previous prime is 398249057. The next prime is 398249069. The reversal of 398249068 is 860942893.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (398249069) 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 9 ways as a sum of consecutive naturals, for example, 11130 + ... + 30337.

Almost surely, 2^398249068 is an apocalyptic number.

It is an amenable number.

398249068 is an abundant number, since it is smaller than the sum of its proper divisors (414814008).

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

398249068 is an equidigital number, since it uses as much as digits as its factorization.

398249068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41499 (or 41476 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 398249068 is about 19956.1786923248. The cubic root of 398249068 is about 735.7296458001.

The spelling of 398249068 in words is "three hundred ninety-eight million, two hundred forty-nine thousand, sixty-eight".