4412440021 has 8 divisors (see below), whose sum is σ = 4895157600. Its totient is φ = 3943320240.

The previous prime is 4412439989. The next prime is 4412440027. The reversal of 4412440021 is 1200442144.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4412440021 - 2⁵ = 4412439989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4412439974 and 4412440001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4412440027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3398766 + ... + 3400063.

It is an arithmetic number, because the mean of its divisors is an integer number (611894700).

Almost surely, 2^4412440021 is an apocalyptic number.

It is an amenable number.

4412440021 is a deficient number, since it is larger than the sum of its proper divisors (482717579).

4412440021 is a wasteful number, since it uses less digits than its factorization.

4412440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798899.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 4412440021 is about 66426.1998085093. The cubic root of 4412440021 is about 1640.1853871581.

Adding to 4412440021 its reverse (1200442144), we get a palindrome (5612882165).

The spelling of 4412440021 in words is "four billion, four hundred twelve million, four hundred forty thousand, twenty-one".