2051939 has 8 divisors (see below), whose sum is σ = 2101248. Its totient is φ = 2003400.

The previous prime is 2051923. The next prime is 2051947. The reversal of 2051939 is 9391502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2051939 - 2⁴ = 2051923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13514 + ... + 13664.

It is an arithmetic number, because the mean of its divisors is an integer number (262656).

2^2051939 is an apocalyptic number.

2051939 is a deficient number, since it is larger than the sum of its proper divisors (49309).

2051939 is a wasteful number, since it uses less digits than its factorization.

2051939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 2051939 is about 1432.4590744590. The cubic root of 2051939 is about 127.0734483278.

The spelling of 2051939 in words is "two million, fifty-one thousand, nine hundred thirty-nine".