457297345 has 4 divisors (see below), whose sum is σ = 548756820. Its totient is φ = 365837872.

The previous prime is 457297343. The next prime is 457297363. The reversal of 457297345 is 543792754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543792754 = 2 ⋅271896377.

It can be written as a sum of positive squares in 2 ways, for example, as 300120976 + 157176369 = 17324^2 + 12537^2 .

It is a cyclic number.

It is not a de Polignac number, because 457297345 - 2¹ = 457297343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457297295 and 457297304.

It is not an unprimeable number, because it can be changed into a prime (457297343) 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, 45729730 + ... + 45729739.

It is an arithmetic number, because the mean of its divisors is an integer number (137189205).

Almost surely, 2^457297345 is an apocalyptic number.

It is an amenable number.

457297345 is a deficient number, since it is larger than the sum of its proper divisors (91459475).

457297345 is an equidigital number, since it uses as much as digits as its factorization.

457297345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91459474.

The product of its digits is 1058400, while the sum is 46.

The square root of 457297345 is about 21384.5118017691. The cubic root of 457297345 is about 770.4294815489.

The spelling of 457297345 in words is "four hundred fifty-seven million, two hundred ninety-seven thousand, three hundred forty-five".