397318608000 has 384 divisors, whose sum is σ = 1479731984640. Its totient is φ = 105950592000.

The previous prime is 397318607989. The next prime is 397318608013. The reversal of 397318608000 is 806813793.

It is a happy number.

397318608000 is a `hidden beast` number, since 3 + 9 + 7 + 31 + 8 + 608 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

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, 3836905 + ... + 3939095.

It is an arithmetic number, because the mean of its divisors is an integer number (3853468710).

Almost surely, 2^397318608000 is an apocalyptic number.

397318608000 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 397318608000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (739865992320).

397318608000 is an abundant number, since it is smaller than the sum of its proper divisors (1082413376640).

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

397318608000 is an equidigital number, since it uses as much as digits as its factorization.

397318608000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102235 (or 102201 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 397318608000 in words is "three hundred ninety-seven billion, three hundred eighteen million, six hundred eight thousand".