285331742 has 8 divisors (see below), whose sum is σ = 433860816. Its totient is φ = 140711472.

The previous prime is 285331741. The next prime is 285331769. The reversal of 285331742 is 247133582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285331741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977018 + ... + 977309.

It is an arithmetic number, because the mean of its divisors is an integer number (54232602).

Almost surely, 2^285331742 is an apocalyptic number.

285331742 is a deficient number, since it is larger than the sum of its proper divisors (148529074).

285331742 is a wasteful number, since it uses less digits than its factorization.

285331742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954402.

The product of its digits is 40320, while the sum is 35.

The square root of 285331742 is about 16891.7655086732. The cubic root of 285331742 is about 658.3396758170.

The spelling of 285331742 in words is "two hundred eighty-five million, three hundred thirty-one thousand, seven hundred forty-two".