7640500240 has 40 divisors (see below), whose sum is σ = 17834983488. Its totient is φ = 3044016000.

The previous prime is 7640500223. The next prime is 7640500253. The reversal of 7640500240 is 420050467.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 7640500199 and 7640500208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170172 + ... + 210331.

Almost surely, 2^7640500240 is an apocalyptic number.

It is an amenable number.

7640500240 is an abundant number, since it is smaller than the sum of its proper divisors (10194483248).

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

7640500240 is a wasteful number, since it uses less digits than its factorization.

7640500240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380767 (or 380761 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 7640500240 is about 87409.9550394576. The cubic root of 7640500240 is about 1969.5813861406.

The spelling of 7640500240 in words is "seven billion, six hundred forty million, five hundred thousand, two hundred forty".