397323360 has 288 divisors, whose sum is σ = 1618535520. Its totient is φ = 90768384.

The previous prime is 397323359. The next prime is 397323389. The reversal of 397323360 is 63323793.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210742 + ... + 212618.

It is an arithmetic number, because the mean of its divisors is an integer number (5619915).

Almost surely, 2^397323360 is an apocalyptic number.

397323360 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397323360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809267760).

397323360 is an abundant number, since it is smaller than the sum of its proper divisors (1221212160).

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

397323360 is a wasteful number, since it uses less digits than its factorization.

397323360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 36.

The square root of 397323360 is about 19932.9716801083. The cubic root of 397323360 is about 735.1591492105.

The spelling of 397323360 in words is "three hundred ninety-seven million, three hundred twenty-three thousand, three hundred sixty".