73321404 has 48 divisors (see below), whose sum is σ = 186348960. Its totient is φ = 22302720.

The previous prime is 73321403. The next prime is 73321421. The reversal of 73321404 is 40412337.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73321403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11244 + ... + 16524.

It is an arithmetic number, because the mean of its divisors is an integer number (3882270).

Almost surely, 2^73321404 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 73321404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93174480).

73321404 is an abundant number, since it is smaller than the sum of its proper divisors (113027556).

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

73321404 is a wasteful number, since it uses less digits than its factorization.

73321404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390 (or 5388 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 73321404 is about 8562.7918344428. The cubic root of 73321404 is about 418.5463807260.

The spelling of 73321404 in words is "seventy-three million, three hundred twenty-one thousand, four hundred four".