397547342 has 16 divisors (see below), whose sum is σ = 607072320. Its totient is φ = 195213312.

The previous prime is 397547327. The next prime is 397547377. The reversal of 397547342 is 243745793.

It is a junction number, because it is equal to n+sod(n) for n = 397547293 and 397547302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29198 + ... + 40590.

It is an arithmetic number, because the mean of its divisors is an integer number (37942020).

Almost surely, 2^397547342 is an apocalyptic number.

397547342 is a deficient number, since it is larger than the sum of its proper divisors (209524978).

397547342 is a wasteful number, since it uses less digits than its factorization.

397547342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11707.

The product of its digits is 635040, while the sum is 44.

The square root of 397547342 is about 19938.5892680500. The cubic root of 397547342 is about 735.2972663390.

The spelling of 397547342 in words is "three hundred ninety-seven million, five hundred forty-seven thousand, three hundred forty-two".