10404024021 has 160 divisors (see below), whose sum is σ = 17870751360. Its totient is φ = 5998841856.

The previous prime is 10404023999. The next prime is 10404024091. The reversal of 10404024021 is 12042040401.

10404024021 is a `hidden beast` number, since 1 + 0 + 404 + 0 + 240 + 21 = 666.

It is not a de Polignac number, because 10404024021 - 2⁶ = 10404023957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10404023985 and 10404024003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10404024091) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 125349646 + ... + 125349728.

It is an arithmetic number, because the mean of its divisors is an integer number (111692196).

Almost surely, 2^10404024021 is an apocalyptic number.

It is an amenable number.

10404024021 is a deficient number, since it is larger than the sum of its proper divisors (7466727339).

10404024021 is a wasteful number, since it uses less digits than its factorization.

10404024021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 10404024021 its reverse (12042040401), we get a palindrome (22446064422).

The spelling of 10404024021 in words is "ten billion, four hundred four million, twenty-four thousand, twenty-one".