248830649 has 8 divisors (see below), whose sum is σ = 264452040. Its totient is φ = 233318656.

The previous prime is 248830639. The next prime is 248830667. The reversal of 248830649 is 946038842.

It can be written as a sum of positive squares in 4 ways, for example, as 22629049 + 226201600 = 4757^2 + 15040^2 .

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-248830649 is a prime.

It is a super-2 number, since 2×248830649² = 123833383763522402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248830619) 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, 22634 + ... + 31779.

It is an arithmetic number, because the mean of its divisors is an integer number (33056505).

Almost surely, 2^248830649 is an apocalyptic number.

It is an amenable number.

248830649 is a deficient number, since it is larger than the sum of its proper divisors (15621391).

248830649 is a wasteful number, since it uses less digits than its factorization.

248830649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54699.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 248830649 is about 15774.3668335689. The cubic root of 248830649 is about 628.9767962909.

The spelling of 248830649 in words is "two hundred forty-eight million, eight hundred thirty thousand, six hundred forty-nine".