457449189 has 4 divisors (see below), whose sum is σ = 609932256. Its totient is φ = 304966124.

The previous prime is 457449163. The next prime is 457449191. The reversal of 457449189 is 981944754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 457449189 - 2¹¹ = 457447141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457449689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76241529 + ... + 76241534.

It is an arithmetic number, because the mean of its divisors is an integer number (152483064).

Almost surely, 2^457449189 is an apocalyptic number.

It is an amenable number.

457449189 is a deficient number, since it is larger than the sum of its proper divisors (152483067).

457449189 is a wasteful number, since it uses less digits than its factorization.

457449189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152483066.

The product of its digits is 1451520, while the sum is 51.

The square root of 457449189 is about 21388.0618336492. The cubic root of 457449189 is about 770.5147449264.

The spelling of 457449189 in words is "four hundred fifty-seven million, four hundred forty-nine thousand, one hundred eighty-nine".