398528270 has 32 divisors (see below), whose sum is σ = 836568000. Its totient is φ = 136637088.

The previous prime is 398528233. The next prime is 398528293. The reversal of 398528270 is 72825893.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54665 + ... + 61524.

It is an arithmetic number, because the mean of its divisors is an integer number (26142750).

Almost surely, 2^398528270 is an apocalyptic number.

398528270 is an abundant number, since it is smaller than the sum of its proper divisors (438039730).

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

398528270 is a wasteful number, since it uses less digits than its factorization.

398528270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116217 (or 116203 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 398528270 is about 19963.1728440146. The cubic root of 398528270 is about 735.9015392369.

The spelling of 398528270 in words is "three hundred ninety-eight million, five hundred twenty-eight thousand, two hundred seventy".