4532645 has 16 divisors (see below), whose sum is σ = 5911920. Its totient is φ = 3316224.

The previous prime is 4532639. The next prime is 4532653. The reversal of 4532645 is 5462354.

It can be written as a sum of positive squares in 8 ways, for example, as 12769 + 4519876 = 113^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 4532645 - 2⁴ = 4532629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8651 + ... + 9159.

It is an arithmetic number, because the mean of its divisors is an integer number (369495).

Almost surely, 2^4532645 is an apocalyptic number.

It is an amenable number.

4532645 is a deficient number, since it is larger than the sum of its proper divisors (1379275).

4532645 is a wasteful number, since it uses less digits than its factorization.

4532645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664.

The product of its digits is 14400, while the sum is 29.

The square root of 4532645 is about 2129.0009394080. Note that the first 3 decimals coincide. The cubic root of 4532645 is about 165.4946283887.

Adding to 4532645 its reverse (5462354), we get a palindrome (9994999).

The spelling of 4532645 in words is "four million, five hundred thirty-two thousand, six hundred forty-five".