724198149 has 12 divisors (see below), whose sum is σ = 1055841696. Its totient is φ = 478285992.

The previous prime is 724198141. The next prime is 724198159. The reversal of 724198149 is 941891427.

It is a happy number.

It is not a de Polignac number, because 724198149 - 2³ = 724198141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724198141) 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 11 ways as a sum of consecutive naturals, for example, 375049 + ... + 376974.

It is an arithmetic number, because the mean of its divisors is an integer number (87986808).

Almost surely, 2^724198149 is an apocalyptic number.

It is an amenable number.

724198149 is a deficient number, since it is larger than the sum of its proper divisors (331643547).

724198149 is a wasteful number, since it uses less digits than its factorization.

724198149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752136 (or 752133 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 724198149 is about 26910.9299170430. The cubic root of 724198149 is about 898.0195749557.

The spelling of 724198149 in words is "seven hundred twenty-four million, one hundred ninety-eight thousand, one hundred forty-nine".