4540073 has 4 divisors (see below), whose sum is σ = 4545408. Its totient is φ = 4534740.

The previous prime is 4540061. The next prime is 4540079. The reversal of 4540073 is 3700454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3700454 = 2 ⋅1850227.

It is a cyclic number.

It is not a de Polignac number, because 4540073 - 2⁶ = 4540009 is a prime.

It is a super-2 number, since 2×4540073² = 41224525690658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4540079) 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, 1073 + ... + 3198.

It is an arithmetic number, because the mean of its divisors is an integer number (1136352).

Almost surely, 2^4540073 is an apocalyptic number.

It is an amenable number.

4540073 is a deficient number, since it is larger than the sum of its proper divisors (5335).

4540073 is a wasteful number, since it uses less digits than its factorization.

4540073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 4540073 is about 2130.7447054962. The cubic root of 4540073 is about 165.5849820488.

The spelling of 4540073 in words is "four million, five hundred forty thousand, seventy-three".