281030842 has 16 divisors (see below), whose sum is σ = 447431040. Its totient is φ = 131927488.

The previous prime is 281030839. The next prime is 281030879. The reversal of 281030842 is 248030182.

It is a self number, because there is not a number n which added to its sum of digits gives 281030842.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4383 + ... + 24109.

It is an arithmetic number, because the mean of its divisors is an integer number (27964440).

Almost surely, 2^281030842 is an apocalyptic number.

281030842 is a deficient number, since it is larger than the sum of its proper divisors (166400198).

281030842 is a wasteful number, since it uses less digits than its factorization.

281030842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20165.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 281030842 is about 16763.9745287327. The cubic root of 281030842 is about 655.0151246435.

The spelling of 281030842 in words is "two hundred eighty-one million, thirty thousand, eight hundred forty-two".