73293480 has 96 divisors (see below), whose sum is σ = 256543560. Its totient is φ = 18040320.

The previous prime is 73293419. The next prime is 73293481. The reversal of 73293480 is 8439237.

It can be written as a sum of positive squares in 4 ways, for example, as 66292164 + 7001316 = 8142^2 + 2646^2 .

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

It is not an unprimeable number, because it can be changed into a prime (73293481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3151 + ... + 12510.

Almost surely, 2^73293480 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 73293480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128271780).

73293480 is an abundant number, since it is smaller than the sum of its proper divisors (183250080).

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

73293480 is a wasteful number, since it uses less digits than its factorization.

73293480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15691 (or 15684 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 73293480 is about 8561.1611362011. The cubic root of 73293480 is about 418.4932403853.

The spelling of 73293480 in words is "seventy-three million, two hundred ninety-three thousand, four hundred eighty".