248724491 has 8 divisors (see below), whose sum is σ = 255166800. Its totient is φ = 242300160.

The previous prime is 248724481. The next prime is 248724493. The reversal of 248724491 is 194427842.

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

It is not a de Polignac number, because 248724491 - 2¹⁰ = 248723467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248724493) 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, 26195 + ... + 34403.

It is an arithmetic number, because the mean of its divisors is an integer number (31895850).

Almost surely, 2^248724491 is an apocalyptic number.

248724491 is a deficient number, since it is larger than the sum of its proper divisors (6442309).

248724491 is an equidigital number, since it uses as much as digits as its factorization.

248724491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8989.

The product of its digits is 129024, while the sum is 41.

The square root of 248724491 is about 15771.0015851879. The cubic root of 248724491 is about 628.8873372999.

The spelling of 248724491 in words is "two hundred forty-eight million, seven hundred twenty-four thousand, four hundred ninety-one".