397941600 has 144 divisors (see below), whose sum is σ = 1480405248. Its totient is φ = 90954240.

The previous prime is 397941589. The next prime is 397941611. The reversal of 397941600 is 6149793.

It is an interprime number because it is at equal distance from previous prime (397941589) and next prime (397941611).

It is a congruent number.

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, 4957 + ... + 28643.

It is an arithmetic number, because the mean of its divisors is an integer number (10280592).

Almost surely, 2^397941600 is an apocalyptic number.

397941600 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 397941600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740202624).

397941600 is an abundant number, since it is smaller than the sum of its proper divisors (1082463648).

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

397941600 is a wasteful number, since it uses less digits than its factorization.

397941600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23717 (or 23704 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 397941600 is about 19948.4736258191. The cubic root of 397941600 is about 735.5402571470.

The spelling of 397941600 in words is "three hundred ninety-seven million, nine hundred forty-one thousand, six hundred".