457405 has 16 divisors (see below), whose sum is σ = 612864. Its totient is φ = 325440.

The previous prime is 457403. The next prime is 457411. The reversal of 457405 is 504754.

It is not a de Polignac number, because 457405 - 2¹ = 457403 is a prime.

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 457405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1902 + ... + 2128.

It is an arithmetic number, because the mean of its divisors is an integer number (38304).

2⁴⁵⁷⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

457405 is a deficient number, since it is larger than the sum of its proper divisors (155459).

457405 is a wasteful number, since it uses less digits than its factorization.

457405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 457405 is about 676.3172332567. The cubic root of 457405 is about 77.0489933885.

The spelling of 457405 in words is "four hundred fifty-seven thousand, four hundred five".