2051396 has 6 divisors (see below), whose sum is σ = 3589950. Its totient is φ = 1025696.

The previous prime is 2051383. The next prime is 2051417. The reversal of 2051396 is 6931502.

It can be written as a sum of positive squares in only one way, i.e., 1473796 + 577600 = 1214^2 + 760^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256421 + ... + 256428.

It is an arithmetic number, because the mean of its divisors is an integer number (598325).

2^2051396 is an apocalyptic number.

It is an amenable number.

2051396 is a deficient number, since it is larger than the sum of its proper divisors (1538554).

2051396 is a wasteful number, since it uses less digits than its factorization.

2051396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512853 (or 512851 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2051396 is about 1432.2695277077. The cubic root of 2051396 is about 127.0622382854.

Adding to 2051396 its reverse (6931502), we get a palindrome (8982898).

The spelling of 2051396 in words is "two million, fifty-one thousand, three hundred ninety-six".