73247472 has 60 divisors (see below), whose sum is σ = 206000704. Its totient is φ = 24295680.

The previous prime is 73247459. The next prime is 73247477. The reversal of 73247472 is 27474237.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73247477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30972 + ... + 33252.

Almost surely, 2^73247472 is an apocalyptic number.

73247472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73247472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103000352).

73247472 is an abundant number, since it is smaller than the sum of its proper divisors (132753232).

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

73247472 is a wasteful number, since it uses less digits than its factorization.

73247472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518 (or 2509 counting only the distinct ones).

The product of its digits is 65856, while the sum is 36.

The square root of 73247472 is about 8558.4736957007. The cubic root of 73247472 is about 418.4056561184.

The spelling of 73247472 in words is "seventy-three million, two hundred forty-seven thousand, four hundred seventy-two".