73051420 has 24 divisors (see below), whose sum is σ = 165209184. Its totient is φ = 26972736.

The previous prime is 73051417. The next prime is 73051423. The reversal of 73051420 is 2415037.

It is an interprime number because it is at equal distance from previous prime (73051417) and next prime (73051423).

It is a junction number, because it is equal to n+sod(n) for n = 73051391 and 73051400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73051423) 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 7 ways as a sum of consecutive naturals, for example, 140224 + ... + 140743.

It is an arithmetic number, because the mean of its divisors is an integer number (6883716).

Almost surely, 2^73051420 is an apocalyptic number.

It is an amenable number.

73051420 is an abundant number, since it is smaller than the sum of its proper divisors (92157764).

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

73051420 is a wasteful number, since it uses less digits than its factorization.

73051420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280989 (or 280987 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 73051420 is about 8547.0123435034. The cubic root of 73051420 is about 418.0320252014.

Adding to 73051420 its reverse (2415037), we get a palindrome (75466457).

The spelling of 73051420 in words is "seventy-three million, fifty-one thousand, four hundred twenty".