4532540 has 24 divisors (see below), whose sum is σ = 10078992. Its totient is φ = 1706240.

The previous prime is 4532531. The next prime is 4532581. The reversal of 4532540 is 452354.

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, 6326 + ... + 7005.

It is an arithmetic number, because the mean of its divisors is an integer number (419958).

Almost surely, 2^4532540 is an apocalyptic number.

It is an amenable number.

4532540 is an abundant number, since it is smaller than the sum of its proper divisors (5546452).

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

4532540 is a wasteful number, since it uses less digits than its factorization.

4532540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13357 (or 13355 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 4532540 is about 2128.9762798115. The cubic root of 4532540 is about 165.4933504690.

Adding to 4532540 its reverse (452354), we get a palindrome (4984894).

The spelling of 4532540 in words is "four million, five hundred thirty-two thousand, five hundred forty".