73108420 has 96 divisors (see below), whose sum is σ = 198132480. Its totient is φ = 21987840.

The previous prime is 73108393. The next prime is 73108429. The reversal of 73108420 is 2480137.

It is not an unprimeable number, because it can be changed into a prime (73108429) 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, 43842 + ... + 45478.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880).

Almost surely, 2^73108420 is an apocalyptic number.

73108420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73108420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99066240).

73108420 is an abundant number, since it is smaller than the sum of its proper divisors (125024060).

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

73108420 is a wasteful number, since it uses less digits than its factorization.

73108420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1691 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 73108420 is about 8550.3461918217. The cubic root of 73108420 is about 418.1407232058.

Adding to 73108420 its reverse (2480137), we get a palindrome (75588557).

The spelling of 73108420 in words is "seventy-three million, one hundred eight thousand, four hundred twenty".