104406021 has 12 divisors (see below), whose sum is σ = 154316448. Its totient is φ = 67985064.

The previous prime is 104406017. The next prime is 104406031. The reversal of 104406021 is 120604401.

It is not a de Polignac number, because 104406021 - 2² = 104406017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104405985 and 104406003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104406031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134505 + ... + 135278.

It is an arithmetic number, because the mean of its divisors is an integer number (12859704).

Almost surely, 2^104406021 is an apocalyptic number.

It is an amenable number.

104406021 is a deficient number, since it is larger than the sum of its proper divisors (49910427).

104406021 is a wasteful number, since it uses less digits than its factorization.

104406021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269832 (or 269829 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 104406021 is about 10217.9264530530. The cubic root of 104406021 is about 470.8781244429.

It can be divided in two parts, 10440 and 6021, that added together give a palindrome (16461).

The spelling of 104406021 in words is "one hundred four million, four hundred six thousand, twenty-one".