248891644 has 12 divisors (see below), whose sum is σ = 435688344. Its totient is φ = 124409264.

The previous prime is 248891641. The next prime is 248891647. The reversal of 248891644 is 446198842.

It is an interprime number because it is at equal distance from previous prime (248891641) and next prime (248891647).

It is a junction number, because it is equal to n+sod(n) for n = 248891594 and 248891603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248891641) 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 3 ways as a sum of consecutive naturals, for example, 11214 + ... + 24970.

It is an arithmetic number, because the mean of its divisors is an integer number (36307362).

Almost surely, 2^248891644 is an apocalyptic number.

It is an amenable number.

248891644 is a deficient number, since it is larger than the sum of its proper divisors (186796700).

248891644 is a wasteful number, since it uses less digits than its factorization.

248891644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18284 (or 18282 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 248891644 is about 15776.3000732111. The cubic root of 248891644 is about 629.0281850642.

The spelling of 248891644 in words is "two hundred forty-eight million, eight hundred ninety-one thousand, six hundred forty-four".