281885852 has 12 divisors (see below), whose sum is σ = 509213376. Its totient is φ = 136396320.

The previous prime is 281885839. The next prime is 281885867. The reversal of 281885852 is 258588182.

It is a junction number, because it is equal to n+sod(n) for n = 281885797 and 281885806.

It is a congruent number.

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, 1136513 + ... + 1136760.

It is an arithmetic number, because the mean of its divisors is an integer number (42434448).

Almost surely, 2^281885852 is an apocalyptic number.

It is an amenable number.

281885852 is a deficient number, since it is larger than the sum of its proper divisors (227327524).

281885852 is a wasteful number, since it uses less digits than its factorization.

281885852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273308 (or 2273306 counting only the distinct ones).

The product of its digits is 409600, while the sum is 47.

The square root of 281885852 is about 16789.4565725041. The cubic root of 281885852 is about 655.6787261600.

The spelling of 281885852 in words is "two hundred eighty-one million, eight hundred eighty-five thousand, eight hundred fifty-two".