4540939 has 4 divisors (see below), whose sum is σ = 4890256. Its totient is φ = 4191624.

The previous prime is 4540927. The next prime is 4540969. The reversal of 4540939 is 9390454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4540939 - 2⁹ = 4540427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4540909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174639 + ... + 174664.

It is an arithmetic number, because the mean of its divisors is an integer number (1222564).

Almost surely, 2^4540939 is an apocalyptic number.

4540939 is a deficient number, since it is larger than the sum of its proper divisors (349317).

4540939 is a wasteful number, since it uses less digits than its factorization.

4540939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349316.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 4540939 is about 2130.9479111419. The cubic root of 4540939 is about 165.5955095945.

The spelling of 4540939 in words is "four million, five hundred forty thousand, nine hundred thirty-nine".