104421312 has 70 divisors (see below), whose sum is σ = 309552848. Its totient is φ = 34805376.

The previous prime is 104421287. The next prime is 104421313. The reversal of 104421312 is 213124401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104421313) 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 9 ways as a sum of consecutive naturals, for example, 4888 + ... + 15255.

Almost surely, 2^104421312 is an apocalyptic number.

104421312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

104421312 is an abundant number, since it is smaller than the sum of its proper divisors (205131536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104421312 is an equidigital number, since it uses as much as digits as its factorization.

104421312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20167 (or 20148 counting only the distinct ones).

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

The square root of 104421312 is about 10218.6746694471. The cubic root of 104421312 is about 470.9011111310.

Adding to 104421312 its reverse (213124401), we get a palindrome (317545713).

The spelling of 104421312 in words is "one hundred four million, four hundred twenty-one thousand, three hundred twelve".