397755360 has 240 divisors, whose sum is σ = 1435807296. Its totient is φ = 103652352.

The previous prime is 397755359. The next prime is 397755377. The reversal of 397755360 is 63557793.

397755360 is a `hidden beast` number, since 3 + 97 + 7 + 553 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 608794 + ... + 609446.

Almost surely, 2^397755360 is an apocalyptic number.

397755360 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 397755360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717903648).

397755360 is an abundant number, since it is smaller than the sum of its proper divisors (1038051936).

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

397755360 is a wasteful number, since it uses less digits than its factorization.

397755360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 595350, while the sum is 45.

The square root of 397755360 is about 19943.8050531989. The cubic root of 397755360 is about 735.4254929091.

The spelling of 397755360 in words is "three hundred ninety-seven million, seven hundred fifty-five thousand, three hundred sixty".