281044242 has 20 divisors (see below), whose sum is σ = 629747646. Its totient is φ = 93681360.

The previous prime is 281044229. The next prime is 281044261. The reversal of 281044242 is 242440182.

It can be written as a sum of positive squares in only one way, i.e., 189860841 + 91183401 = 13779^2 + 9549^2 .

It is a super-2 number, since 2×281044242² = 157971731922709128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 867259 + ... + 867582.

Almost surely, 2^281044242 is an apocalyptic number.

281044242 is an abundant number, since it is smaller than the sum of its proper divisors (348703404).

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

281044242 is a wasteful number, since it uses less digits than its factorization.

281044242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734855 (or 1734846 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 281044242 is about 16764.3741905268. The cubic root of 281044242 is about 655.0255352009.

The spelling of 281044242 in words is "two hundred eighty-one million, forty-four thousand, two hundred forty-two".