397988224200 has 768 divisors, whose sum is σ = 1593701568000. Its totient is φ = 89413632000.

The previous prime is 397988224177. The next prime is 397988224229. The reversal of 397988224200 is 2422889793.

It is a happy number.

397988224200 is a `hidden beast` number, since 397 + 9 + 8 + 8 + 2 + 242 + 0 + 0 = 666.

397988224200 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 945339990 + ... + 945340410.

It is an arithmetic number, because the mean of its divisors is an integer number (2075132250).

Almost surely, 2^397988224200 is an apocalyptic number.

397988224200 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 397988224200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796850784000).

397988224200 is an abundant number, since it is smaller than the sum of its proper divisors (1195713343800).

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

397988224200 is a wasteful number, since it uses less digits than its factorization.

397988224200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 397988224200 in words is "three hundred ninety-seven billion, nine hundred eighty-eight million, two hundred twenty-four thousand, two hundred".