398322270 has 48 divisors (see below), whose sum is σ = 1090149840. Its totient is φ = 100628352.

The previous prime is 398322263. The next prime is 398322271. The reversal of 398322270 is 72223893.

It is a super-3 number, since 3×398322270³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398322271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114759 + ... + 118178.

It is an arithmetic number, because the mean of its divisors is an integer number (22711455).

Almost surely, 2^398322270 is an apocalyptic number.

398322270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

398322270 is an abundant number, since it is smaller than the sum of its proper divisors (691827570).

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

398322270 is a wasteful number, since it uses less digits than its factorization.

398322270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232969 (or 232966 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 398322270 is about 19958.0126766169. The cubic root of 398322270 is about 735.7747210946.

The spelling of 398322270 in words is "three hundred ninety-eight million, three hundred twenty-two thousand, two hundred seventy".