2400043541 has 4 divisors (see below), whose sum is σ = 2742906912. Its totient is φ = 2057180172.

The previous prime is 2400043511. The next prime is 2400043589. The reversal of 2400043541 is 1453400042.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2400043541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400043511) 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, 171431675 + ... + 171431688.

It is an arithmetic number, because the mean of its divisors is an integer number (685726728).

Almost surely, 2^2400043541 is an apocalyptic number.

It is an amenable number.

2400043541 is a deficient number, since it is larger than the sum of its proper divisors (342863371).

2400043541 is an equidigital number, since it uses as much as digits as its factorization.

2400043541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342863370.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2400043541 is about 48990.2392421184. The cubic root of 2400043541 is about 1338.8739967210.

Adding to 2400043541 its reverse (1453400042), we get a palindrome (3853443583).

The spelling of 2400043541 in words is "two billion, four hundred million, forty-three thousand, five hundred forty-one".