2400443 has 4 divisors (see below), whose sum is σ = 2429448. Its totient is φ = 2371440.

The previous prime is 2400413. The next prime is 2400469. The reversal of 2400443 is 3440042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2400443 - 2⁸ = 2400187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2400413) 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, 14378 + ... + 14543.

It is an arithmetic number, because the mean of its divisors is an integer number (607362).

2^2400443 is an apocalyptic number.

2400443 is a deficient number, since it is larger than the sum of its proper divisors (29005).

2400443 is an equidigital number, since it uses as much as digits as its factorization.

2400443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29004.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2400443 is about 1549.3363095210. The cubic root of 2400443 is about 133.8948272540.

Adding to 2400443 its reverse (3440042), we get a palindrome (5840485).

The spelling of 2400443 in words is "two million, four hundred thousand, four hundred forty-three".