285046918 has 16 divisors (see below), whose sum is σ = 460782000. Its totient is φ = 131468256.

The previous prime is 285046901. The next prime is 285046919. The reversal of 285046918 is 819640582.

It is a happy number.

It is a super-2 number, since 2×285046918² = 162503490922597448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285046919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46708 + ... + 52456.

It is an arithmetic number, because the mean of its divisors is an integer number (28798875).

Almost surely, 2^285046918 is an apocalyptic number.

285046918 is a deficient number, since it is larger than the sum of its proper divisors (175735082).

285046918 is a wasteful number, since it uses less digits than its factorization.

285046918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7671.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 285046918 is about 16883.3325501810. The cubic root of 285046918 is about 658.1205468299.

The spelling of 285046918 in words is "two hundred eighty-five million, forty-six thousand, nine hundred eighteen".