4540279 has 4 divisors (see below), whose sum is σ = 4587184. Its totient is φ = 4493376.

The previous prime is 4540231. The next prime is 4540303. The reversal of 4540279 is 9720454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9720454 = 2 ⋅4860227.

It is a cyclic number.

It is not a de Polignac number, because 4540279 - 2⁹ = 4539767 is a prime.

It is a super-2 number, since 2×4540279² = 41228266795682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4540279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23307 + ... + 23500.

It is an arithmetic number, because the mean of its divisors is an integer number (1146796).

Almost surely, 2^4540279 is an apocalyptic number.

4540279 is a deficient number, since it is larger than the sum of its proper divisors (46905).

4540279 is an equidigital number, since it uses as much as digits as its factorization.

4540279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46904.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 4540279 is about 2130.7930448544. The cubic root of 4540279 is about 165.5874864131.

The spelling of 4540279 in words is "four million, five hundred forty thousand, two hundred seventy-nine".