73813420 has 12 divisors (see below), whose sum is σ = 155008224. Its totient is φ = 29525360.

The previous prime is 73813403. The next prime is 73813427. The reversal of 73813420 is 2431837.

It is not an unprimeable number, because it can be changed into a prime (73813427) 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 3 ways as a sum of consecutive naturals, for example, 1845316 + ... + 1845355.

It is an arithmetic number, because the mean of its divisors is an integer number (12917352).

Almost surely, 2^73813420 is an apocalyptic number.

It is an amenable number.

73813420 is an abundant number, since it is smaller than the sum of its proper divisors (81194804).

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

73813420 is a wasteful number, since it uses less digits than its factorization.

73813420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690680 (or 3690678 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 73813420 is about 8591.4736803415. The cubic root of 73813420 is about 419.4804990360.

It can be divided in two parts, 7381 and 3420, that added together give a palindrome (10801).

The spelling of 73813420 in words is "seventy-three million, eight hundred thirteen thousand, four hundred twenty".