104030405 has 4 divisors (see below), whose sum is σ = 124836492. Its totient is φ = 83224320.

The previous prime is 104030401. The next prime is 104030417. The reversal of 104030405 is 504030401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504030401 = 7 ⋅72004343.

It can be written as a sum of positive squares in 2 ways, for example, as 74632321 + 29398084 = 8639^2 + 5422^2 .

It is not a de Polignac number, because 104030405 - 2² = 104030401 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104030401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10403036 + ... + 10403045.

It is an arithmetic number, because the mean of its divisors is an integer number (31209123).

Almost surely, 2^104030405 is an apocalyptic number.

It is an amenable number.

104030405 is a deficient number, since it is larger than the sum of its proper divisors (20806087).

104030405 is an equidigital number, since it uses as much as digits as its factorization.

104030405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20806086.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 104030405 is about 10199.5296460180. The cubic root of 104030405 is about 470.3127614962.

Adding to 104030405 its reverse (504030401), we get a palindrome (608060806).

The spelling of 104030405 in words is "one hundred four million, thirty thousand, four hundred five".