397542 has 16 divisors (see below), whose sum is σ = 809280. Its totient is φ = 130152.

The previous prime is 397541. The next prime is 397543. The reversal of 397542 is 245793.

It is an interprime number because it is at equal distance from previous prime (397541) and next prime (397543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (50580).

2³⁹⁷⁵⁴² is an apocalyptic number.

397542 is an abundant number, since it is smaller than the sum of its proper divisors (411738).

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

397542 is a wasteful number, since it uses less digits than its factorization.

397542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187.

The product of its digits is 7560, while the sum is 30.

The square root of 397542 is about 630.5093179327. The cubic root of 397542 is about 73.5293972831.

It can be divided in two parts, 397 and 542, that added together give a palindrome (939).

The spelling of 397542 in words is "three hundred ninety-seven thousand, five hundred forty-two".