2640335502 has 24 divisors (see below), whose sum is σ = 6142822056. Its totient is φ = 754381488.

The previous prime is 2640335473. The next prime is 2640335519. The reversal of 2640335502 is 2055330462.

It is a self number, because there is not a number n which added to its sum of digits gives 2640335502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4490073 + ... + 4490660.

It is an arithmetic number, because the mean of its divisors is an integer number (255950919).

Almost surely, 2^2640335502 is an apocalyptic number.

2640335502 is an abundant number, since it is smaller than the sum of its proper divisors (3502486554).

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

2640335502 is a wasteful number, since it uses less digits than its factorization.

2640335502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8980752 (or 8980745 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 2640335502 is about 51384.1950603491. The cubic root of 2640335502 is about 1382.1431905125.

Adding to 2640335502 its reverse (2055330462), we get a palindrome (4695665964).

The spelling of 2640335502 in words is "two billion, six hundred forty million, three hundred thirty-five thousand, five hundred two".