2400024421 has 4 divisors (see below), whose sum is σ = 2458561644. Its totient is φ = 2341487200.

The previous prime is 2400024409. The next prime is 2400024449. The reversal of 2400024421 is 1244200042.

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

It can be written as a sum of positive squares in 2 ways, for example, as 142444225 + 2257580196 = 11935^2 + 47514^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400024421 - 2⁷ = 2400024293 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 (2400024461) 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, 29268550 + ... + 29268631.

It is an arithmetic number, because the mean of its divisors is an integer number (614640411).

Almost surely, 2^2400024421 is an apocalyptic number.

It is an amenable number.

2400024421 is a deficient number, since it is larger than the sum of its proper divisors (58537223).

2400024421 is an equidigital number, since it uses as much as digits as its factorization.

2400024421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58537222.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2400024421 is about 48990.0441008171. The cubic root of 2400024421 is about 1338.8704413217.

Adding to 2400024421 its reverse (1244200042), we get a palindrome (3644224463).

The spelling of 2400024421 in words is "two billion, four hundred million, twenty-four thousand, four hundred twenty-one".