457638843 has 32 divisors (see below), whose sum is σ = 660441600. Its totient is φ = 281135360.

The previous prime is 457638791. The next prime is 457638851. The reversal of 457638843 is 348836754.

It is not a de Polignac number, because 457638843 - 2¹⁶ = 457573307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457638792 and 457638801.

It is not an unprimeable number, because it can be changed into a prime (457638343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233833 + ... + 235781.

It is an arithmetic number, because the mean of its divisors is an integer number (20638800).

Almost surely, 2^457638843 is an apocalyptic number.

457638843 is a deficient number, since it is larger than the sum of its proper divisors (202802757).

457638843 is a wasteful number, since it uses less digits than its factorization.

457638843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099.

The product of its digits is 1935360, while the sum is 48.

The square root of 457638843 is about 21392.4950157760. The cubic root of 457638843 is about 770.6212128626.

The spelling of 457638843 in words is "four hundred fifty-seven million, six hundred thirty-eight thousand, eight hundred forty-three".