2599993240 has 64 divisors (see below), whose sum is σ = 6403340160. Its totient is φ = 944248320.

The previous prime is 2599993217. The next prime is 2599993267. The reversal of 2599993240 is 423999952.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9264 + ... + 72703.

It is an arithmetic number, because the mean of its divisors is an integer number (100052190).

Almost surely, 2^2599993240 is an apocalyptic number.

2599993240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2599993240 is an abundant number, since it is smaller than the sum of its proper divisors (3803346920).

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

2599993240 is a wasteful number, since it uses less digits than its factorization.

2599993240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82052 (or 82048 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 2599993240 is about 50990.1288486311. The cubic root of 2599993240 is about 1375.0676753468.

The spelling of 2599993240 in words is "two billion, five hundred ninety-nine million, nine hundred ninety-three thousand, two hundred forty".