397025000 has 48 divisors (see below), whose sum is σ = 930526380. Its totient is φ = 158800000.

The previous prime is 397024981. The next prime is 397025003. The reversal of 397025000 is 520793.

It can be written as a sum of positive squares in 6 ways, for example, as 3161284 + 393863716 = 1778^2 + 19846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397025003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17060 + ... + 32940.

Almost surely, 2^397025000 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 397025000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465263190).

397025000 is an abundant number, since it is smaller than the sum of its proper divisors (533501380).

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

397025000 is an equidigital number, since it uses as much as digits as its factorization.

397025000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912 (or 15888 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 397025000 is about 19925.4861923116. The cubic root of 397025000 is about 734.9750866962.

Adding to 397025000 its reverse (520793), we get a palindrome (397545793).

The spelling of 397025000 in words is "three hundred ninety-seven million, twenty-five thousand".