285330957 has 8 divisors (see below), whose sum is σ = 386119776. Its totient is φ = 187381392.

The previous prime is 285330949. The next prime is 285330967. The reversal of 285330957 is 759033582.

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

It is not a de Polignac number, because 285330957 - 2³ = 285330949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285330917) 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 7 ways as a sum of consecutive naturals, for example, 709578 + ... + 709979.

It is an arithmetic number, because the mean of its divisors is an integer number (48264972).

Almost surely, 2^285330957 is an apocalyptic number.

It is an amenable number.

285330957 is a deficient number, since it is larger than the sum of its proper divisors (100788819).

285330957 is a wasteful number, since it uses less digits than its factorization.

285330957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419627.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 285330957 is about 16891.7422724833. The cubic root of 285330957 is about 658.3390720787.

The spelling of 285330957 in words is "two hundred eighty-five million, three hundred thirty thousand, nine hundred fifty-seven".