4534640 has 40 divisors (see below), whose sum is σ = 11503728. Its totient is φ = 1648640.

The previous prime is 4534637. The next prime is 4534667. The reversal of 4534640 is 464354.

4534640 is nontrivially palindromic in base 15.

It is a tau number, because it is divible by the number of its divisors (40).

It is a d-powerful number, because it can be written as 4 + 5⁷ + 3³ + 4⁹ + 6² + 4¹¹ + 0 .

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, 1697 + ... + 3456.

Almost surely, 2^4534640 is an apocalyptic number.

4534640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4534640 is an abundant number, since it is smaller than the sum of its proper divisors (6969088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4534640 is a wasteful number, since it uses less digits than its factorization.

4534640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177 (or 5171 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 4534640 is about 2129.4694174841. The cubic root of 4534640 is about 165.5189051158.

Adding to 4534640 its reverse (464354), we get a palindrome (4998994).

The spelling of 4534640 in words is "four million, five hundred thirty-four thousand, six hundred forty".