397699200 has 192 divisors, whose sum is σ = 1455784800. Its totient is φ = 106030080.

The previous prime is 397699189. The next prime is 397699213. The reversal of 397699200 is 2996793.

It is a tau number, because it is divible by the number of its divisors (192).

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 23 ways as a sum of consecutive naturals, for example, 84099 + ... + 88701.

Almost surely, 2^397699200 is an apocalyptic number.

397699200 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 397699200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727892400).

397699200 is an abundant number, since it is smaller than the sum of its proper divisors (1058085600).

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

397699200 is a wasteful number, since it uses less digits than its factorization.

397699200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4636 (or 4613 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 397699200 is about 19942.3970474966. The cubic root of 397699200 is about 735.3908791374.

The spelling of 397699200 in words is "three hundred ninety-seven million, six hundred ninety-nine thousand, two hundred".