285897342 has 16 divisors (see below), whose sum is σ = 572031360. Its totient is φ = 95259672.

The previous prime is 285897329. The next prime is 285897371. The reversal of 285897342 is 243798582.

It is a junction number, because it is equal to n+sod(n) for n = 285897291 and 285897300.

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, 8463 + ... + 25365.

It is an arithmetic number, because the mean of its divisors is an integer number (35751960).

Almost surely, 2^285897342 is an apocalyptic number.

285897342 is an abundant number, since it is smaller than the sum of its proper divisors (286134018).

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

285897342 is a wasteful number, since it uses less digits than its factorization.

285897342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19727.

The product of its digits is 967680, while the sum is 48.

The square root of 285897342 is about 16908.4991054795. The cubic root of 285897342 is about 658.7743875357.

The spelling of 285897342 in words is "two hundred eighty-five million, eight hundred ninety-seven thousand, three hundred forty-two".