2432040021 has 48 divisors (see below), whose sum is σ = 3710266560. Its totient is φ = 1532993280.

The previous prime is 2432040011. The next prime is 2432040047. The reversal of 2432040021 is 1200402342.

2432040021 is a `hidden beast` number, since 243 + 2 + 0 + 400 + 21 = 666.

It is not a de Polignac number, because 2432040021 - 2⁵ = 2432039989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2432039976 and 2432040003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2432040001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2837425 + ... + 2838281.

It is an arithmetic number, because the mean of its divisors is an integer number (77297220).

Almost surely, 2^2432040021 is an apocalyptic number.

It is an amenable number.

2432040021 is a deficient number, since it is larger than the sum of its proper divisors (1278226539).

2432040021 is a wasteful number, since it uses less digits than its factorization.

2432040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2432040021 is about 49315.7177885509. The cubic root of 2432040021 is about 1344.7975393029.

Adding to 2432040021 its reverse (1200402342), we get a palindrome (3632442363).

The spelling of 2432040021 in words is "two billion, four hundred thirty-two million, forty thousand, twenty-one".