457742 has 8 divisors (see below), whose sum is σ = 727056. Its totient is φ = 215392.

The previous prime is 457739. The next prime is 457757. The reversal of 457742 is 247754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6698 + ... + 6765.

It is an arithmetic number, because the mean of its divisors is an integer number (90882).

2⁴⁵⁷⁷⁴² is an apocalyptic number.

457742 is a deficient number, since it is larger than the sum of its proper divisors (269314).

457742 is a wasteful number, since it uses less digits than its factorization.

457742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13482.

The product of its digits is 7840, while the sum is 29.

The square root of 457742 is about 676.5663308206. The cubic root of 457742 is about 77.0679110774.

The spelling of 457742 in words is "four hundred fifty-seven thousand, seven hundred forty-two".