73450420 has 12 divisors (see below), whose sum is σ = 154245924. Its totient is φ = 29380160.

The previous prime is 73450397. The next prime is 73450427. The reversal of 73450420 is 2405437.

It can be written as a sum of positive squares in 2 ways, for example, as 43112356 + 30338064 = 6566^2 + 5508^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73450427) 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 3 ways as a sum of consecutive naturals, for example, 1836241 + ... + 1836280.

It is an arithmetic number, because the mean of its divisors is an integer number (12853827).

Almost surely, 2^73450420 is an apocalyptic number.

It is an amenable number.

73450420 is an abundant number, since it is smaller than the sum of its proper divisors (80795504).

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

73450420 is a wasteful number, since it uses less digits than its factorization.

73450420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672530 (or 3672528 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 73450420 is about 8570.3220476246. The cubic root of 73450420 is about 418.7917276306.

Adding to 73450420 its reverse (2405437), we get a palindrome (75855857).

The spelling of 73450420 in words is "seventy-three million, four hundred fifty thousand, four hundred twenty".