285714320 has 20 divisors (see below), whose sum is σ = 664285980. Its totient is φ = 114285696.

The previous prime is 285714311. The next prime is 285714367. The reversal of 285714320 is 23417582.

It can be written as a sum of positive squares in 2 ways, for example, as 192321424 + 93392896 = 13868^2 + 9664^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785635 + ... + 1785794.

It is an arithmetic number, because the mean of its divisors is an integer number (33214299).

Almost surely, 2^285714320 is an apocalyptic number.

285714320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285714320 is an abundant number, since it is smaller than the sum of its proper divisors (378571660).

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

285714320 is a wasteful number, since it uses less digits than its factorization.

285714320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571442 (or 3571436 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 285714320 is about 16903.0861087554. The cubic root of 285714320 is about 658.6337823537.

The spelling of 285714320 in words is "two hundred eighty-five million, seven hundred fourteen thousand, three hundred twenty".