2646486240 has 48 divisors (see below), whose sum is σ = 8336433168. Its totient is φ = 705729536.

The previous prime is 2646486233. The next prime is 2646486247. The reversal of 2646486240 is 426846462.

It is an interprime number because it is at equal distance from previous prime (2646486233) and next prime (2646486247).

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 2646486192 and 2646486201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646486247) 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 7 ways as a sum of consecutive naturals, for example, 2756277 + ... + 2757236.

It is an arithmetic number, because the mean of its divisors is an integer number (173675691).

Almost surely, 2^2646486240 is an apocalyptic number.

2646486240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2646486240 is an abundant number, since it is smaller than the sum of its proper divisors (5689946928).

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

2646486240 is a wasteful number, since it uses less digits than its factorization.

2646486240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513531 (or 5513523 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 42.

The square root of 2646486240 is about 51444.0107301132. The cubic root of 2646486240 is about 1383.2156057293.

The spelling of 2646486240 in words is "two billion, six hundred forty-six million, four hundred eighty-six thousand, two hundred forty".