2142786936 has 64 divisors (see below), whose sum is σ = 5496583680. Its totient is φ = 695704320.

The previous prime is 2142786931. The next prime is 2142786937. The reversal of 2142786936 is 6396872412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142786931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 773025 + ... + 775791.

It is an arithmetic number, because the mean of its divisors is an integer number (85884120).

Almost surely, 2^2142786936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142786936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2748291840).

2142786936 is an abundant number, since it is smaller than the sum of its proper divisors (3353796744).

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

2142786936 is a wasteful number, since it uses less digits than its factorization.

2142786936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604 (or 3600 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 2142786936 is about 46290.2466616889. The cubic root of 2142786936 is about 1289.2179094470.

The spelling of 2142786936 in words is "two billion, one hundred forty-two million, seven hundred eighty-six thousand, nine hundred thirty-six".