248447381 has 8 divisors (see below), whose sum is σ = 305781504. Its totient is φ = 196573680.

The previous prime is 248447377. The next prime is 248447383. The reversal of 248447381 is 183744842.

It is a happy number.

248447381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 248447381 - 2² = 248447377 is a prime.

It is a super-2 number, since 2×248447381² = 123452202251518322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248447383) 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, 1365005 + ... + 1365186.

It is an arithmetic number, because the mean of its divisors is an integer number (38222688).

Almost surely, 2^248447381 is an apocalyptic number.

It is an amenable number.

248447381 is a deficient number, since it is larger than the sum of its proper divisors (57334123).

248447381 is a wasteful number, since it uses less digits than its factorization.

248447381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730211.

The product of its digits is 172032, while the sum is 41.

The square root of 248447381 is about 15762.2137087403. The cubic root of 248447381 is about 628.6536976219.

The spelling of 248447381 in words is "two hundred forty-eight million, four hundred forty-seven thousand, three hundred eighty-one".