73423020 has 96 divisors (see below), whose sum is σ = 228614400. Its totient is φ = 17455360.

The previous prime is 73423001. The next prime is 73423027. The reversal of 73423020 is 2032437.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73423027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33931 + ... + 36029.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^73423020 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 73423020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114307200).

73423020 is an abundant number, since it is smaller than the sum of its proper divisors (155191380).

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

73423020 is a wasteful number, since it uses less digits than its factorization.

73423020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 73423020 is about 8568.7233588207. The cubic root of 73423020 is about 418.7396456933.

Adding to 73423020 its reverse (2032437), we get a palindrome (75455457).

The spelling of 73423020 in words is "seventy-three million, four hundred twenty-three thousand, twenty".