2662640940 has 48 divisors (see below), whose sum is σ = 7468731648. Its totient is φ = 708767424.

The previous prime is 2662640927. The next prime is 2662640947. The reversal of 2662640940 is 490462662.

It is not an unprimeable number, because it can be changed into a prime (2662640947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5632 + ... + 73191.

It is an arithmetic number, because the mean of its divisors is an integer number (155598576).

Almost surely, 2^2662640940 is an apocalyptic number.

2662640940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2662640940 is an abundant number, since it is smaller than the sum of its proper divisors (4806090708).

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

2662640940 is a wasteful number, since it uses less digits than its factorization.

2662640940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79398 (or 79396 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 2662640940 is about 51600.7842963651. The cubic root of 2662640940 is about 1386.0243765091.

The spelling of 2662640940 in words is "two billion, six hundred sixty-two million, six hundred forty thousand, nine hundred forty".