2404531 has 4 divisors (see below), whose sum is σ = 2545992. Its totient is φ = 2263072.

The previous prime is 2404529. The next prime is 2404541. The reversal of 2404531 is 1354042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1354042 = 2 ⋅677021.

It is a cyclic number.

It is not a de Polignac number, because 2404531 - 2¹ = 2404529 is a prime.

It is a super-2 number, since 2×2404531² = 11563538659922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2404499 and 2404508.

It is not an unprimeable number, because it can be changed into a prime (2404541) 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, 70705 + ... + 70738.

It is an arithmetic number, because the mean of its divisors is an integer number (636498).

2^2404531 is an apocalyptic number.

2404531 is a deficient number, since it is larger than the sum of its proper divisors (141461).

2404531 is a wasteful number, since it uses less digits than its factorization.

2404531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141460.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2404531 is about 1550.6550228855. The cubic root of 2404531 is about 133.9707926244.

Adding to 2404531 its reverse (1354042), we get a palindrome (3758573).

The spelling of 2404531 in words is "two million, four hundred four thousand, five hundred thirty-one".