104262421 has 4 divisors (see below), whose sum is σ = 104282892. Its totient is φ = 104241952.

The previous prime is 104262407. The next prime is 104262437. The reversal of 104262421 is 124262401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63123025 + 41139396 = 7945^2 + 6414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104262421 is a prime.

It is a super-3 number, since 3×104262421³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104262392 and 104262401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104262721) 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, 4065 + ... + 15001.

It is an arithmetic number, because the mean of its divisors is an integer number (26070723).

Almost surely, 2^104262421 is an apocalyptic number.

It is an amenable number.

104262421 is a deficient number, since it is larger than the sum of its proper divisors (20471).

104262421 is an equidigital number, since it uses as much as digits as its factorization.

104262421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 104262421 is about 10210.8971692011. The cubic root of 104262421 is about 470.6621435305.

The spelling of 104262421 in words is "one hundred four million, two hundred sixty-two thousand, four hundred twenty-one".