2688923040 has 48 divisors (see below), whose sum is σ = 8470109088. Its totient is φ = 717046016.

The previous prime is 2688923033. The next prime is 2688923059. The reversal of 2688923040 is 403298862.

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 = 2688922983 and 2688923001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2800482 + ... + 2801441.

It is an arithmetic number, because the mean of its divisors is an integer number (176460606).

Almost surely, 2^2688923040 is an apocalyptic number.

2688923040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2688923040 is an abundant number, since it is smaller than the sum of its proper divisors (5781186048).

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

2688923040 is a wasteful number, since it uses less digits than its factorization.

2688923040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601941 (or 5601933 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 2688923040 is about 51854.8265834532. The cubic root of 2688923040 is about 1390.5697921036.

The spelling of 2688923040 in words is "two billion, six hundred eighty-eight million, nine hundred twenty-three thousand, forty".