248394491 has 4 divisors (see below), whose sum is σ = 250806192. Its totient is φ = 245982792.

The previous prime is 248394481. The next prime is 248394493. The reversal of 248394491 is 194493842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248394491 - 2⁶ = 248394427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248394493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205696 + ... + 1205901.

It is an arithmetic number, because the mean of its divisors is an integer number (62701548).

Almost surely, 2^248394491 is an apocalyptic number.

248394491 is a deficient number, since it is larger than the sum of its proper divisors (2411701).

248394491 is a wasteful number, since it uses less digits than its factorization.

248394491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411700.

The product of its digits is 248832, while the sum is 44.

The square root of 248394491 is about 15760.5358728693. The cubic root of 248394491 is about 628.6090847497.

The spelling of 248394491 in words is "two hundred forty-eight million, three hundred ninety-four thousand, four hundred ninety-one".