73473472 has 56 divisors (see below), whose sum is σ = 155813760. Its totient is φ = 34298880.

The previous prime is 73473461. The next prime is 73473479. The reversal of 73473472 is 27437437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73473479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56898 + ... + 58174.

Almost surely, 2^73473472 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 73473472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77906880).

73473472 is an abundant number, since it is smaller than the sum of its proper divisors (82340288).

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

73473472 is a wasteful number, since it uses less digits than its factorization.

73473472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1339 counting only the distinct ones).

The product of its digits is 98784, while the sum is 37.

The square root of 73473472 is about 8571.6668157366. Note that the first 3 decimals coincide. The cubic root of 73473472 is about 418.8355348552.

The spelling of 73473472 in words is "seventy-three million, four hundred seventy-three thousand, four hundred seventy-two".