398248272 has 40 divisors (see below), whose sum is σ = 1143121280. Its totient is φ = 132749280.

The previous prime is 398248267. The next prime is 398248297. The reversal of 398248272 is 272842893.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460504 + ... + 461367.

It is an arithmetic number, because the mean of its divisors is an integer number (28578032).

Almost surely, 2^398248272 is an apocalyptic number.

It is an amenable number.

398248272 is an abundant number, since it is smaller than the sum of its proper divisors (744873008).

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

398248272 is a wasteful number, since it uses less digits than its factorization.

398248272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921888 (or 921876 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 398248272 is about 19956.1587486169. The cubic root of 398248272 is about 735.7291556201.

The spelling of 398248272 in words is "three hundred ninety-eight million, two hundred forty-eight thousand, two hundred seventy-two".