281900049 has 8 divisors (see below), whose sum is σ = 375987360. Its totient is φ = 187873056.

The previous prime is 281900027. The next prime is 281900071. The reversal of 281900049 is 940009182.

It is an interprime number because it is at equal distance from previous prime (281900027) and next prime (281900071).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 281900049 - 2⁹ = 281899537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 281899992 and 281900019.

It is not an unprimeable number, because it can be changed into a prime (281901049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2727 + ... + 23900.

It is an arithmetic number, because the mean of its divisors is an integer number (46998420).

Almost surely, 2^281900049 is an apocalyptic number.

It is an amenable number.

281900049 is a deficient number, since it is larger than the sum of its proper divisors (94087311).

281900049 is a wasteful number, since it uses less digits than its factorization.

281900049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30159.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 281900049 is about 16789.8793622825. The cubic root of 281900049 is about 655.6897335879.

The spelling of 281900049 in words is "two hundred eighty-one million, nine hundred thousand, forty-nine".