2403023 has 4 divisors (see below), whose sum is σ = 2746320. Its totient is φ = 2059728.

The previous prime is 2403019. The next prime is 2403029. The reversal of 2403023 is 3203042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3203042 = 2 ⋅1601521.

It is a cyclic number.

It is not a de Polignac number, because 2403023 - 2² = 2403019 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2402989 and 2403007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2403029) 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, 171638 + ... + 171651.

It is an arithmetic number, because the mean of its divisors is an integer number (686580).

2^2403023 is an apocalyptic number.

2403023 is a deficient number, since it is larger than the sum of its proper divisors (343297).

2403023 is an equidigital number, since it uses as much as digits as its factorization.

2403023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343296.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 2403023 is about 1550.1687004968. The cubic root of 2403023 is about 133.9427802034.

Adding to 2403023 its reverse (3203042), we get a palindrome (5606065).

The spelling of 2403023 in words is "two million, four hundred three thousand, twenty-three".