457646 has 16 divisors (see below), whose sum is σ = 794976. Its totient is φ = 193536.

The previous prime is 457643. The next prime is 457651. The reversal of 457646 is 646754.

It is a super-2 number, since 2×457646² = 418879722632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (49686).

2⁴⁵⁷⁶⁴⁶ is an apocalyptic number.

457646 is a deficient number, since it is larger than the sum of its proper divisors (337330).

457646 is a wasteful number, since it uses less digits than its factorization.

457646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443.

The product of its digits is 20160, while the sum is 32.

The square root of 457646 is about 676.4953806199. The cubic root of 457646 is about 77.0625230082.

The spelling of 457646 in words is "four hundred fifty-seven thousand, six hundred forty-six".