268447457 has 4 divisors (see below), whose sum is σ = 268495920. Its totient is φ = 268398996.

The previous prime is 268447441. The next prime is 268447483. The reversal of 268447457 is 754744862.

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.

It is a cyclic number.

It is not a de Polignac number, because 268447457 - 2⁴ = 268447441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268447957) 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, 14663 + ... + 27420.

It is an arithmetic number, because the mean of its divisors is an integer number (67123980).

Almost surely, 2^268447457 is an apocalyptic number.

It is an amenable number.

268447457 is a deficient number, since it is larger than the sum of its proper divisors (48463).

268447457 is an equidigital number, since it uses as much as digits as its factorization.

268447457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48462.

The product of its digits is 1505280, while the sum is 47.

The square root of 268447457 is about 16384.3662373618. The cubic root of 268447457 is about 645.0891906387.

The spelling of 268447457 in words is "two hundred sixty-eight million, four hundred forty-seven thousand, four hundred fifty-seven".