281463949 has 8 divisors (see below), whose sum is σ = 316294272. Its totient is φ = 248516400.

The previous prime is 281463913. The next prime is 281463953. The reversal of 281463949 is 949364182.

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

It is a cyclic number.

It is not a de Polignac number, because 281463949 - 2⁹ = 281463437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 281463899 and 281463908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281461949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470377 + ... + 470974.

It is an arithmetic number, because the mean of its divisors is an integer number (39536784).

Almost surely, 2^281463949 is an apocalyptic number.

It is an amenable number.

281463949 is a deficient number, since it is larger than the sum of its proper divisors (34830323).

281463949 is a wasteful number, since it uses less digits than its factorization.

281463949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941387.

The product of its digits is 373248, while the sum is 46.

The square root of 281463949 is about 16776.8873453928. The cubic root of 281463949 is about 655.3514412583.

The spelling of 281463949 in words is "two hundred eighty-one million, four hundred sixty-three thousand, nine hundred forty-nine".