7240566840 has 64 divisors (see below), whose sum is σ = 23392605600. Its totient is φ = 1782292992.

The previous prime is 7240566833. The next prime is 7240566841. The reversal of 7240566840 is 486650427.

It is a junction number, because it is equal to n+sod(n) for n = 7240566792 and 7240566801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240566841) 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, 2319135 + ... + 2322254.

Almost surely, 2^7240566840 is an apocalyptic number.

It is an amenable number.

7240566840 is an abundant number, since it is smaller than the sum of its proper divisors (16152038760).

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

7240566840 is a wasteful number, since it uses less digits than its factorization.

7240566840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641416 (or 4641412 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 7240566840 is about 85091.5203765922. The cubic root of 7240566840 is about 1934.5985399268.

The spelling of 7240566840 in words is "seven billion, two hundred forty million, five hundred sixty-six thousand, eight hundred forty".