397398700800 has 1296 divisors, whose sum is σ = 1544398652160. Its totient is φ = 101025792000.

The previous prime is 397398700789. The next prime is 397398700817. The reversal of 397398700800 is 8007893793.

It is a tau number, because it is divible by the number of its divisors (1296).

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 143 ways as a sum of consecutive naturals, for example, 5597164765 + ... + 5597164835.

Almost surely, 2^397398700800 is an apocalyptic number.

397398700800 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 397398700800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772199326080).

397398700800 is an abundant number, since it is smaller than the sum of its proper divisors (1146999951360).

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

397398700800 is an equidigital number, since it uses as much as digits as its factorization.

397398700800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 397398700800 in words is "three hundred ninety-seven billion, three hundred ninety-eight million, seven hundred thousand, eight hundred".