397000238 has 4 divisors (see below), whose sum is σ = 595500360. Its totient is φ = 198500118.

The previous prime is 397000237. The next prime is 397000273. The reversal of 397000238 is 832000793.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397000237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99250058 + ... + 99250061.

It is an arithmetic number, because the mean of its divisors is an integer number (148875090).

Almost surely, 2^397000238 is an apocalyptic number.

397000238 is a deficient number, since it is larger than the sum of its proper divisors (198500122).

397000238 is a wasteful number, since it uses less digits than its factorization.

397000238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198500121.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 397000238 is about 19924.8648176092. The cubic root of 397000238 is about 734.9598065237.

The spelling of 397000238 in words is "three hundred ninety-seven million, two hundred thirty-eight", and thus it is an aban number.