2689420188 has 48 divisors (see below), whose sum is σ = 7723466240. Its totient is φ = 709297344.

The previous prime is 2689420177. The next prime is 2689420193. The reversal of 2689420188 is 8810249862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230328 + ... + 1232511.

Almost surely, 2^2689420188 is an apocalyptic number.

2689420188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2689420188 is an abundant number, since it is smaller than the sum of its proper divisors (5034046052).

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

2689420188 is a wasteful number, since it uses less digits than its factorization.

2689420188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462866 (or 2462864 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 2689420188 is about 51859.6200140340. The cubic root of 2689420188 is about 1390.6554864355.

The spelling of 2689420188 in words is "two billion, six hundred eighty-nine million, four hundred twenty thousand, one hundred eighty-eight".