73045424 has 80 divisors (see below), whose sum is σ = 160942080. Its totient is φ = 31933440.

The previous prime is 73045409. The next prime is 73045429. The reversal of 73045424 is 42454037.

It is not an unprimeable number, because it can be changed into a prime (73045429) 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, 216584 + ... + 216920.

It is an arithmetic number, because the mean of its divisors is an integer number (2011776).

Almost surely, 2^73045424 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 73045424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80471040).

73045424 is an abundant number, since it is smaller than the sum of its proper divisors (87896656).

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

73045424 is a wasteful number, since it uses less digits than its factorization.

73045424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 73045424 is about 8546.6615704613. The cubic root of 73045424 is about 418.0205876477.

The spelling of 73045424 in words is "seventy-three million, forty-five thousand, four hundred twenty-four".