397935000 has 240 divisors, whose sum is σ = 1388930400. Its totient is φ = 102816000.

The previous prime is 397934987. The next prime is 397935001. The reversal of 397935000 is 539793.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397935001) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1664881 + ... + 1665119.

It is an arithmetic number, because the mean of its divisors is an integer number (5787210).

Almost surely, 2^397935000 is an apocalyptic number.

397935000 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 397935000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694465200).

397935000 is an abundant number, since it is smaller than the sum of its proper divisors (990995400).

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

397935000 is a wasteful number, since it uses less digits than its factorization.

397935000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 36.

The square root of 397935000 is about 19948.3081989426. The cubic root of 397935000 is about 735.5361907275.

The spelling of 397935000 in words is "three hundred ninety-seven million, nine hundred thirty-five thousand".