248457489 has 12 divisors (see below), whose sum is σ = 385362864. Its totient is φ = 141975624.

The previous prime is 248457427. The next prime is 248457493. The reversal of 248457489 is 984754842.

248457489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 248457489 - 2¹² = 248453393 is a prime.

It is a super-2 number, since 2×248457489² = 123462247680370242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (248457409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 844947 + ... + 845240.

It is an arithmetic number, because the mean of its divisors is an integer number (32113572).

Almost surely, 2^248457489 is an apocalyptic number.

It is an amenable number.

248457489 is a deficient number, since it is larger than the sum of its proper divisors (136905375).

248457489 is a wasteful number, since it uses less digits than its factorization.

248457489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690204 (or 1690197 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The square root of 248457489 is about 15762.5343457199. The cubic root of 248457489 is about 628.6622230292.

The spelling of 248457489 in words is "two hundred forty-eight million, four hundred fifty-seven thousand, four hundred eighty-nine".