7240907880 has 48 divisors (see below), whose sum is σ = 23532951780. Its totient is φ = 1930908672.

The previous prime is 7240907879. The next prime is 7240907899. The reversal of 7240907880 is 887090427.

It can be written as a sum of positive squares in 2 ways, for example, as 7227380196 + 13527684 = 85014^2 + 3678^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10056457 + ... + 10057176.

Almost surely, 2^7240907880 is an apocalyptic number.

It is an amenable number.

7240907880 is an abundant number, since it is smaller than the sum of its proper divisors (16292043900).

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

7240907880 is a wasteful number, since it uses less digits than its factorization.

7240907880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20113650 (or 20113643 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 7240907880 is about 85093.5243129582. The cubic root of 7240907880 is about 1934.6289134754.

The spelling of 7240907880 in words is "seven billion, two hundred forty million, nine hundred seven thousand, eight hundred eighty".