397349000 has 64 divisors (see below), whose sum is σ = 934979760. Its totient is φ = 158054400.

The previous prime is 397348993. The next prime is 397349009. The reversal of 397349000 is 943793.

It can be written as a sum of positive squares in 8 ways, for example, as 161849284 + 235499716 = 12722^2 + 15346^2 .

It is not an unprimeable number, because it can be changed into a prime (397349009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195992 + ... + 198008.

Almost surely, 2^397349000 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 397349000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467489880).

397349000 is an abundant number, since it is smaller than the sum of its proper divisors (537630760).

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

397349000 is a wasteful number, since it uses less digits than its factorization.

397349000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235 (or 2221 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 397349000 is about 19933.6148252142. The cubic root of 397349000 is about 735.1749625899.

The spelling of 397349000 in words is "three hundred ninety-seven million, three hundred forty-nine thousand".