248389469 has 4 divisors (see below), whose sum is σ = 252599520. Its totient is φ = 244179420.

The previous prime is 248389459. The next prime is 248389487. The reversal of 248389469 is 964983842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 964983842 = 2 ⋅482491921.

It is a cyclic number.

It is not a de Polignac number, because 248389469 - 2¹² = 248385373 is a prime.

It is a super-2 number, since 2×248389469² = 123394656620203922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 248389469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248389409) 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, 2104937 + ... + 2105054.

It is an arithmetic number, because the mean of its divisors is an integer number (63149880).

Almost surely, 2^248389469 is an apocalyptic number.

It is an amenable number.

248389469 is a deficient number, since it is larger than the sum of its proper divisors (4210051).

248389469 is an equidigital number, since it uses as much as digits as its factorization.

248389469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210050.

The product of its digits is 2985984, while the sum is 53.

The square root of 248389469 is about 15760.3765500701. The cubic root of 248389469 is about 628.6048483486.

The spelling of 248389469 in words is "two hundred forty-eight million, three hundred eighty-nine thousand, four hundred sixty-nine".