4457745 has 48 divisors (see below), whose sum is σ = 8311680. Its totient is φ = 2204928.

The previous prime is 4457729. The next prime is 4457753. The reversal of 4457745 is 5477544.

4457745 is a `hidden beast` number, since 44 + 577 + 45 = 666.

It is not a de Polignac number, because 4457745 - 2⁴ = 4457729 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61029 + ... + 61101.

It is an arithmetic number, because the mean of its divisors is an integer number (173160).

Almost surely, 2^4457745 is an apocalyptic number.

4457745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4457745 is a deficient number, since it is larger than the sum of its proper divisors (3853935).

4457745 is a wasteful number, since it uses less digits than its factorization.

4457745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 163 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 4457745 is about 2111.3372539696. The cubic root of 4457745 is about 164.5779849069.

The spelling of 4457745 in words is "four million, four hundred fifty-seven thousand, seven hundred forty-five".