248911439 has 16 divisors (see below), whose sum is σ = 289191168. Its totient is φ = 209836032.

The previous prime is 248911427. The next prime is 248911447. The reversal of 248911439 is 934119842.

It is not a de Polignac number, because 248911439 - 2⁴ = 248911423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 248911396 and 248911405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248911459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148484 + ... + 150150.

It is an arithmetic number, because the mean of its divisors is an integer number (18074448).

Almost surely, 2^248911439 is an apocalyptic number.

248911439 is a deficient number, since it is larger than the sum of its proper divisors (40279729).

248911439 is a wasteful number, since it uses less digits than its factorization.

248911439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014.

The product of its digits is 62208, while the sum is 41.

The square root of 248911439 is about 15776.9274258330. The cubic root of 248911439 is about 629.0448607048.

The spelling of 248911439 in words is "two hundred forty-eight million, nine hundred eleven thousand, four hundred thirty-nine".