4539542 has 16 divisors (see below), whose sum is σ = 7948800. Its totient is φ = 1903848.

The previous prime is 4539541. The next prime is 4539551. The reversal of 4539542 is 2459354.

It is a happy number.

It is a d-powerful number, because it can be written as 4⁹ + 5 + 3⁷ + 9³ + 5⁷ + 4¹¹ + 2¹¹ .

It is a junction number, because it is equal to n+sod(n) for n = 4539499 and 4539508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2792 + ... + 4107.

It is an arithmetic number, because the mean of its divisors is an integer number (496800).

Almost surely, 2^4539542 is an apocalyptic number.

4539542 is a deficient number, since it is larger than the sum of its proper divisors (3409258).

4539542 is a wasteful number, since it uses less digits than its factorization.

4539542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955.

The product of its digits is 21600, while the sum is 32.

The square root of 4539542 is about 2130.6200975303. The cubic root of 4539542 is about 165.5785262750.

The spelling of 4539542 in words is "four million, five hundred thirty-nine thousand, five hundred forty-two".