4542403 has 4 divisors (see below), whose sum is σ = 4586608. Its totient is φ = 4498200.

The previous prime is 4542389. The next prime is 4542407. The reversal of 4542403 is 3042454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3042454 = 2 ⋅1521227.

It is a cyclic number.

It is not a de Polignac number, because 4542403 - 2⁵ = 4542371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4542407) 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, 21948 + ... + 22153.

It is an arithmetic number, because the mean of its divisors is an integer number (1146652).

Almost surely, 2^4542403 is an apocalyptic number.

4542403 is a deficient number, since it is larger than the sum of its proper divisors (44205).

4542403 is a wasteful number, since it uses less digits than its factorization.

4542403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44204.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4542403 is about 2131.2913925599. The cubic root of 4542403 is about 165.6133036952.

Adding to 4542403 its reverse (3042454), we get a palindrome (7584857).

It can be divided in two parts, 4 and 542403, that multiplied together give a palindrome (2169612).

The spelling of 4542403 in words is "four million, five hundred forty-two thousand, four hundred three".