281224994 has 32 divisors (see below), whose sum is σ = 443390976. Its totient is φ = 133623360.

The previous prime is 281224991. The next prime is 281225003. The reversal of 281224994 is 499422182.

It is not an unprimeable number, because it can be changed into a prime (281224991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1625492 + ... + 1625664.

It is an arithmetic number, because the mean of its divisors is an integer number (13855968).

Almost surely, 2^281224994 is an apocalyptic number.

281224994 is a deficient number, since it is larger than the sum of its proper divisors (162165982).

281224994 is a wasteful number, since it uses less digits than its factorization.

281224994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

The product of its digits is 82944, while the sum is 41.

The square root of 281224994 is about 16769.7642797983. The cubic root of 281224994 is about 655.1659304184.

The spelling of 281224994 in words is "two hundred eighty-one million, two hundred twenty-four thousand, nine hundred ninety-four".