110404021 has 32 divisors (see below), whose sum is σ = 140894208. Its totient is φ = 84188160.

The previous prime is 110403983. The next prime is 110404031. The reversal of 110404021 is 120404011.

It is not a de Polignac number, because 110404021 - 2¹³ = 110395829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 110403992 and 110404010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110404031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473721 + ... + 473953.

It is an arithmetic number, because the mean of its divisors is an integer number (4402944).

Almost surely, 2^110404021 is an apocalyptic number.

It is an amenable number.

110404021 is a deficient number, since it is larger than the sum of its proper divisors (30490187).

110404021 is a wasteful number, since it uses less digits than its factorization.

110404021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 110404021 is about 10507.3317735760. The cubic root of 110404021 is about 479.7278854071.

Adding to 110404021 its reverse (120404011), we get a palindrome (230808032).

The spelling of 110404021 in words is "one hundred ten million, four hundred four thousand, twenty-one".