249484671 has 8 divisors (see below), whose sum is σ = 369606960. Its totient is φ = 166323096.

The previous prime is 249484663. The next prime is 249484681. The reversal of 249484671 is 176484942.

It is not a de Polignac number, because 249484671 - 2³ = 249484663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249484681) 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, 4620060 + ... + 4620113.

It is an arithmetic number, because the mean of its divisors is an integer number (46200870).

Almost surely, 2^249484671 is an apocalyptic number.

249484671 is a deficient number, since it is larger than the sum of its proper divisors (120122289).

249484671 is an equidigital number, since it uses as much as digits as its factorization.

249484671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240182 (or 9240176 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 249484671 is about 15795.0837604617. The cubic root of 249484671 is about 629.5273779569.

The spelling of 249484671 in words is "two hundred forty-nine million, four hundred eighty-four thousand, six hundred seventy-one".