2688490704 has 240 divisors, whose sum is σ = 7866371520. Its totient is φ = 789626880.

The previous prime is 2688490669. The next prime is 2688490741. The reversal of 2688490704 is 4070948862.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16493727 + ... + 16493889.

It is an arithmetic number, because the mean of its divisors is an integer number (32776548).

Almost surely, 2^2688490704 is an apocalyptic number.

2688490704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2688490704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3933185760).

2688490704 is an abundant number, since it is smaller than the sum of its proper divisors (5177880816).

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

2688490704 is a wasteful number, since it uses less digits than its factorization.

2688490704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 2688490704 is about 51850.6577007467. The cubic root of 2688490704 is about 1390.4952609504.

The spelling of 2688490704 in words is "two billion, six hundred eighty-eight million, four hundred ninety thousand, seven hundred four".