285212732 has 48 divisors (see below), whose sum is σ = 594585600. Its totient is φ = 119606256.

The previous prime is 285212729. The next prime is 285212771. The reversal of 285212732 is 237212582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62273 + ... + 66695.

It is an arithmetic number, because the mean of its divisors is an integer number (12387200).

Almost surely, 2^285212732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285212732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297292800).

285212732 is an abundant number, since it is smaller than the sum of its proper divisors (309372868).

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

285212732 is a wasteful number, since it uses less digits than its factorization.

285212732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495 (or 4479 counting only the distinct ones).

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

The square root of 285212732 is about 16888.2424189138. The cubic root of 285212732 is about 658.2481333669.

The spelling of 285212732 in words is "two hundred eighty-five million, two hundred twelve thousand, seven hundred thirty-two".