4457645 has 8 divisors (see below), whose sum is σ = 5521920. Its totient is φ = 3450960.

The previous prime is 4457639. The next prime is 4457657. The reversal of 4457645 is 5467544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4457645 - 2⁸ = 4457389 is a prime.

It is a super-3 number, since 3×4457645³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 4⁵ + 4⁹ + 5 + 7 + 6² + 4¹¹ + 5³ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14225 + ... + 14534.

It is an arithmetic number, because the mean of its divisors is an integer number (690240).

Almost surely, 2^4457645 is an apocalyptic number.

It is an amenable number.

4457645 is a deficient number, since it is larger than the sum of its proper divisors (1064275).

4457645 is a wasteful number, since it uses less digits than its factorization.

4457645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28795.

The product of its digits is 67200, while the sum is 35.

The square root of 4457645 is about 2111.3135721631. The cubic root of 4457645 is about 164.5767542457.

The spelling of 4457645 in words is "four million, four hundred fifty-seven thousand, six hundred forty-five".