457682621 has 24 divisors (see below), whose sum is σ = 532489440. Its totient is φ = 391992480.

The previous prime is 457682593. The next prime is 457682623. The reversal of 457682621 is 126286754.

It is a de Polignac number, because none of the positive numbers 2^k-457682621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457682623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521435 + ... + 522311.

It is an arithmetic number, because the mean of its divisors is an integer number (22187060).

Almost surely, 2^457682621 is an apocalyptic number.

It is an amenable number.

457682621 is a deficient number, since it is larger than the sum of its proper divisors (74806819).

457682621 is a wasteful number, since it uses less digits than its factorization.

457682621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1134 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 457682621 is about 21393.5182006139. The cubic root of 457682621 is about 770.6457847714.

The spelling of 457682621 in words is "four hundred fifty-seven million, six hundred eighty-two thousand, six hundred twenty-one".