2640609552 has 40 divisors (see below), whose sum is σ = 7796086336. Its totient is φ = 754459776.

The previous prime is 2640609539. The next prime is 2640609577. The reversal of 2640609552 is 2559060462.

It is a super-2 number, since 2×2640609552² = 13945637612227281408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2640609552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3929143 + ... + 3929814.

Almost surely, 2^2640609552 is an apocalyptic number.

It is an amenable number.

2640609552 is an abundant number, since it is smaller than the sum of its proper divisors (5155476784).

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

2640609552 is a wasteful number, since it uses less digits than its factorization.

2640609552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858975 (or 7858969 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 2640609552 is about 51386.8616671616. The cubic root of 2640609552 is about 1382.1910080768.

The spelling of 2640609552 in words is "two billion, six hundred forty million, six hundred nine thousand, five hundred fifty-two".