2139936 has 24 divisors (see below), whose sum is σ = 5617584. Its totient is φ = 713280.

The previous prime is 2139931. The next prime is 2139937. The reversal of 2139936 is 6399312.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 2139897 and 2139906.

It is not an unprimeable number, because it can be changed into a prime (2139931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11050 + ... + 11241.

It is an arithmetic number, because the mean of its divisors is an integer number (234066).

2^2139936 is an apocalyptic number.

It is an amenable number.

2139936 is an abundant number, since it is smaller than the sum of its proper divisors (3477648).

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

2139936 is a wasteful number, since it uses less digits than its factorization.

2139936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304 (or 22296 counting only the distinct ones).

The product of its digits is 8748, while the sum is 33.

The square root of 2139936 is about 1462.8520089196. The cubic root of 2139936 is about 128.8645895972.

The spelling of 2139936 in words is "two million, one hundred thirty-nine thousand, nine hundred thirty-six".