457273845 has 24 divisors (see below), whose sum is σ = 905838336. Its totient is φ = 209039328.

The previous prime is 457273819. The next prime is 457273853. The reversal of 457273845 is 548372754.

457273845 is a `hidden beast` number, since 4 + 572 + 7 + 38 + 45 = 666.

It is not a de Polignac number, because 457273845 - 2¹⁵ = 457241077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 457273845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 725517 + ... + 726146.

It is an arithmetic number, because the mean of its divisors is an integer number (37743264).

Almost surely, 2^457273845 is an apocalyptic number.

457273845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

457273845 is a deficient number, since it is larger than the sum of its proper divisors (448564491).

457273845 is a wasteful number, since it uses less digits than its factorization.

457273845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451681 (or 1451678 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 457273845 is about 21383.9623316167. The cubic root of 457273845 is about 770.4162841526.

The spelling of 457273845 in words is "four hundred fifty-seven million, two hundred seventy-three thousand, eight hundred forty-five".