2742786 has 12 divisors (see below), whose sum is σ = 5942742. Its totient is φ = 914256.

The previous prime is 2742781. The next prime is 2742793. The reversal of 2742786 is 6872472.

It can be written as a sum of positive squares in only one way, i.e., 2295225 + 447561 = 1515^2 + 669^2 .

It is a d-powerful number, because it can be written as 2²⁰ + 7⁴ + 4⁹ + 2²⁰ + 7⁶ + 8⁶ + 6⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 2742786.

It is not an unprimeable number, because it can be changed into a prime (2742781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76171 + ... + 76206.

2^2742786 is an apocalyptic number.

2742786 is an abundant number, since it is smaller than the sum of its proper divisors (3199956).

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

2742786 is a wasteful number, since it uses less digits than its factorization.

2742786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152385 (or 152382 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 2742786 is about 1656.1358639918. The cubic root of 2742786 is about 139.9793506960.

The spelling of 2742786 in words is "two million, seven hundred forty-two thousand, seven hundred eighty-six".