2686693400 has 96 divisors (see below), whose sum is σ = 6540987600. Its totient is φ = 1024934400.

The previous prime is 2686693397. The next prime is 2686693433. The reversal of 2686693400 is 43966862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478610 + ... + 484190.

Almost surely, 2^2686693400 is an apocalyptic number.

2686693400 is a gapful number since it is divisible by the number (20) 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 2686693400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3270493800).

2686693400 is an abundant number, since it is smaller than the sum of its proper divisors (3854294200).

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

2686693400 is a wasteful number, since it uses less digits than its factorization.

2686693400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709 (or 5700 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 2686693400 is about 51833.3232583056. The cubic root of 2686693400 is about 1390.1853349133.

The spelling of 2686693400 in words is "two billion, six hundred eighty-six million, six hundred ninety-three thousand, four hundred".