2640489003 has 32 divisors (see below), whose sum is σ = 4009505280. Its totient is φ = 1716513120.

The previous prime is 2640489001. The next prime is 2640489013. The reversal of 2640489003 is 3009840462.

It is a happy number.

2640489003 is a `hidden beast` number, since 2 + 640 + 4 + 8 + 9 + 0 + 0 + 3 = 666.

2640489003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2640489003 - 2¹ = 2640489001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2640489001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861093 + ... + 864153.

It is an arithmetic number, because the mean of its divisors is an integer number (125297040).

Almost surely, 2^2640489003 is an apocalyptic number.

2640489003 is a deficient number, since it is larger than the sum of its proper divisors (1369016277).

2640489003 is a wasteful number, since it uses less digits than its factorization.

2640489003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856 (or 3850 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2640489003 is about 51385.6886983137. The cubic root of 2640489003 is about 1382.1699745141.

The spelling of 2640489003 in words is "two billion, six hundred forty million, four hundred eighty-nine thousand, three".