398067320 has 32 divisors (see below), whose sum is σ = 1023602400. Its totient is φ = 136480128.

The previous prime is 398067317. The next prime is 398067323. The reversal of 398067320 is 23760893.

It is an interprime number because it is at equal distance from previous prime (398067317) and next prime (398067323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398067323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710555 + ... + 711114.

It is an arithmetic number, because the mean of its divisors is an integer number (31987575).

Almost surely, 2^398067320 is an apocalyptic number.

It is an amenable number.

398067320 is an abundant number, since it is smaller than the sum of its proper divisors (625535080).

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

398067320 is a wasteful number, since it uses less digits than its factorization.

398067320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421687 (or 1421683 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 398067320 is about 19951.6244952635. The cubic root of 398067320 is about 735.6177076948.

The spelling of 398067320 in words is "three hundred ninety-eight million, sixty-seven thousand, three hundred twenty".