7280073500 has 48 divisors (see below), whose sum is σ = 18171072192. Its totient is φ = 2496024000.

The previous prime is 7280073499. The next prime is 7280073503. The reversal of 7280073500 is 53700827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7280073503) 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, 1036511 + ... + 1043510.

It is an arithmetic number, because the mean of its divisors is an integer number (378564004).

Almost surely, 2^7280073500 is an apocalyptic number.

7280073500 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7280073500 is an abundant number, since it is smaller than the sum of its proper divisors (10890998692).

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

7280073500 is a wasteful number, since it uses less digits than its factorization.

7280073500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080047 (or 2080035 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 7280073500 is about 85323.3467463625. The cubic root of 7280073500 is about 1938.1107391309.

The spelling of 7280073500 in words is "seven billion, two hundred eighty million, seventy-three thousand, five hundred".