285011672 has 16 divisors (see below), whose sum is σ = 582978600. Its totient is φ = 129550720.

The previous prime is 285011663. The next prime is 285011689. The reversal of 285011672 is 276110582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619297 + ... + 1619472.

Almost surely, 2^285011672 is an apocalyptic number.

285011672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

285011672 is an abundant number, since it is smaller than the sum of its proper divisors (297966928).

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

285011672 is a wasteful number, since it uses less digits than its factorization.

285011672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238786 (or 3238782 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 285011672 is about 16882.2887073998. The cubic root of 285011672 is about 658.0934202162.

The spelling of 285011672 in words is "two hundred eighty-five million, eleven thousand, six hundred seventy-two".