395991342 has 32 divisors (see below), whose sum is σ = 890854560. Its totient is φ = 131995656.

The previous prime is 395991341. The next prime is 395991361. The reversal of 395991342 is 243199593.

395991342 is a `hidden beast` number, since 3 + 9 + 599 + 13 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395991341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40893 + ... + 49640.

It is an arithmetic number, because the mean of its divisors is an integer number (27839205).

Almost surely, 2^395991342 is an apocalyptic number.

395991342 is an abundant number, since it is smaller than the sum of its proper divisors (494863218).

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

395991342 is an frugal number, since it uses more digits than its factorization.

395991342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90556 (or 90538 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 395991342 is about 19899.5312005082. The cubic root of 395991342 is about 734.3366943702.

The spelling of 395991342 in words is "three hundred ninety-five million, nine hundred ninety-one thousand, three hundred forty-two".