248240729 has 8 divisors (see below), whose sum is σ = 273490560. Its totient is φ = 223438000.

The previous prime is 248240717. The next prime is 248240731. The reversal of 248240729 is 927042842.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248240729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248240692 and 248240701.

It is not an unprimeable number, because it can be changed into a prime (248240129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110609 + ... + 112830.

It is an arithmetic number, because the mean of its divisors is an integer number (34186320).

Almost surely, 2^248240729 is an apocalyptic number.

It is an amenable number.

248240729 is a deficient number, since it is larger than the sum of its proper divisors (25249831).

248240729 is a wasteful number, since it uses less digits than its factorization.

248240729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223551.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 248240729 is about 15755.6570475496. The cubic root of 248240729 is about 628.4793500674.

The spelling of 248240729 in words is "two hundred forty-eight million, two hundred forty thousand, seven hundred twenty-nine".