397730099200 has 468 divisors, whose sum is σ = 1184742570432. Its totient is φ = 131914137600.

The previous prime is 397730099189. The next prime is 397730099201. The reversal of 397730099200 is 2990037793.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (397730099201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 155544322 + ... + 155546878.

Almost surely, 2^397730099200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397730099200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592371285216).

397730099200 is an abundant number, since it is smaller than the sum of its proper divisors (787012471232).

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

397730099200 is a wasteful number, since it uses less digits than its factorization.

397730099200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636 (or 2602 counting only the distinct ones).

The product of its (nonzero) digits is 642978, while the sum is 49.

The spelling of 397730099200 in words is "three hundred ninety-seven billion, seven hundred thirty million, ninety-nine thousand, two hundred".