397316142 has 24 divisors (see below), whose sum is σ = 872979120. Its totient is φ = 130572960.

The previous prime is 397316141. The next prime is 397316147. The reversal of 397316142 is 241613793.

397316142 is a `hidden beast` number, since 3 + 9 + 7 + 31 + 614 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 397316097 and 397316106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397316141) 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, 154167 + ... + 156722.

It is an arithmetic number, because the mean of its divisors is an integer number (36374130).

Almost surely, 2^397316142 is an apocalyptic number.

397316142 is an abundant number, since it is smaller than the sum of its proper divisors (475662978).

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

397316142 is a wasteful number, since it uses less digits than its factorization.

397316142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310968 (or 310965 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 397316142 is about 19932.7906224894. The cubic root of 397316142 is about 735.1546974118.

The spelling of 397316142 in words is "three hundred ninety-seven million, three hundred sixteen thousand, one hundred forty-two".