73272576 has 144 divisors (see below), whose sum is σ = 216336960. Its totient is φ = 21872640.

The previous prime is 73272547. The next prime is 73272581. The reversal of 73272576 is 67527237.

It is a Harshad number since it is a multiple of its sum of digits (39).

Its product of digits (123480) is a multiple of the sum of its prime factors (252).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409255 + ... + 409433.

It is an arithmetic number, because the mean of its divisors is an integer number (1502340).

Almost surely, 2^73272576 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 73272576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108168480).

73272576 is an abundant number, since it is smaller than the sum of its proper divisors (143064384).

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

73272576 is a wasteful number, since it uses less digits than its factorization.

73272576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 238 counting only the distinct ones).

The product of its digits is 123480, while the sum is 39.

The square root of 73272576 is about 8559.9401867069. The cubic root of 73272576 is about 418.4534505135.

The spelling of 73272576 in words is "seventy-three million, two hundred seventy-two thousand, five hundred seventy-six".