285307964 has 6 divisors (see below), whose sum is σ = 499288944. Its totient is φ = 142653980.

The previous prime is 285307963. The next prime is 285307993. The reversal of 285307964 is 469703582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285307961) 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 as a sum of consecutive naturals, namely, 35663492 + ... + 35663499.

It is an arithmetic number, because the mean of its divisors is an integer number (83214824).

Almost surely, 2^285307964 is an apocalyptic number.

It is an amenable number.

285307964 is a deficient number, since it is larger than the sum of its proper divisors (213980980).

285307964 is a wasteful number, since it uses less digits than its factorization.

285307964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71326995 (or 71326993 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 285307964 is about 16891.0616599431. The cubic root of 285307964 is about 658.3213878229.

The spelling of 285307964 in words is "two hundred eighty-five million, three hundred seven thousand, nine hundred sixty-four".