103421604 has 72 divisors (see below), whose sum is σ = 285705280. Its totient is φ = 28923840.

The previous prime is 103421581. The next prime is 103421609. The reversal of 103421604 is 406124301.

It is not an unprimeable number, because it can be changed into a prime (103421609) 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 23 ways as a sum of consecutive naturals, for example, 16137 + ... + 21615.

Almost surely, 2^103421604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103421604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142852640).

103421604 is an abundant number, since it is smaller than the sum of its proper divisors (182283676).

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

103421604 is a wasteful number, since it uses less digits than its factorization.

103421604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 103421604 is about 10169.6412916091. The cubic root of 103421604 is about 469.3935198422.

Adding to 103421604 its reverse (406124301), we get a palindrome (509545905).

The spelling of 103421604 in words is "one hundred three million, four hundred twenty-one thousand, six hundred four".