2686147940 has 24 divisors (see below), whose sum is σ = 6446755392. Its totient is φ = 920964960.

The previous prime is 2686147921. The next prime is 2686147957. The reversal of 2686147940 is 497416862.

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, 9593246 + ... + 9593525.

It is an arithmetic number, because the mean of its divisors is an integer number (268614808).

Almost surely, 2^2686147940 is an apocalyptic number.

2686147940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2686147940 is an abundant number, since it is smaller than the sum of its proper divisors (3760607452).

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

2686147940 is a wasteful number, since it uses less digits than its factorization.

2686147940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19186787 (or 19186785 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 2686147940 is about 51828.0613181701. The cubic root of 2686147940 is about 1390.0912487757.

The spelling of 2686147940 in words is "two billion, six hundred eighty-six million, one hundred forty-seven thousand, nine hundred forty".