457384805 has 4 divisors (see below), whose sum is σ = 548861772. Its totient is φ = 365907840.

The previous prime is 457384801. The next prime is 457384817. The reversal of 457384805 is 508483754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 508483754 = 2 ⋅254241877.

It can be written as a sum of positive squares in 2 ways, for example, as 313360804 + 144024001 = 17702^2 + 12001^2 .

It is not a de Polignac number, because 457384805 - 2² = 457384801 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457384801) 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, 45738476 + ... + 45738485.

It is an arithmetic number, because the mean of its divisors is an integer number (137215443).

Almost surely, 2^457384805 is an apocalyptic number.

It is an amenable number.

457384805 is a deficient number, since it is larger than the sum of its proper divisors (91476967).

457384805 is an equidigital number, since it uses as much as digits as its factorization.

457384805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91476966.

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 457384805 is about 21386.5566419655. The cubic root of 457384805 is about 770.4785943548.

The spelling of 457384805 in words is "four hundred fifty-seven million, three hundred eighty-four thousand, eight hundred five".