285494424 has 24 divisors (see below), whose sum is σ = 713943060. Its totient is φ = 95137216.

The previous prime is 285494401. The next prime is 285494441. The reversal of 285494424 is 424494582.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×285494424² = 163014132270183552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81052 + ... + 84500.

Almost surely, 2^285494424 is an apocalyptic number.

285494424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

285494424 is an abundant number, since it is smaller than the sum of its proper divisors (428448636).

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

285494424 is an frugal number, since it uses more digits than its factorization.

285494424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907 (or 3454 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 285494424 is about 16896.5802457184. The cubic root of 285494424 is about 658.4647695839.

The spelling of 285494424 in words is "two hundred eighty-five million, four hundred ninety-four thousand, four hundred twenty-four".