7280000740 has 12 divisors (see below), whose sum is σ = 15288001596. Its totient is φ = 2912000288.

The previous prime is 7280000731. The next prime is 7280000753. The reversal of 7280000740 is 470000827.

It can be written as a sum of positive squares in 2 ways, for example, as 5033051136 + 2246949604 = 70944^2 + 47402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7280000699 and 7280000708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181999999 + ... + 182000038.

It is an arithmetic number, because the mean of its divisors is an integer number (1274000133).

Almost surely, 2^7280000740 is an apocalyptic number.

It is an amenable number.

7280000740 is an abundant number, since it is smaller than the sum of its proper divisors (8008000856).

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

7280000740 is a wasteful number, since it uses less digits than its factorization.

7280000740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364000046 (or 364000044 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 7280000740 is about 85322.9203672729. The cubic root of 7280000740 is about 1938.1042823551.

The spelling of 7280000740 in words is "seven billion, two hundred eighty million, seven hundred forty", and thus it is an aban number.