2051436 has 12 divisors (see below), whose sum is σ = 4786712. Its totient is φ = 683808.

The previous prime is 2051429. The next prime is 2051437. The reversal of 2051436 is 6341502.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2051437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85465 + ... + 85488.

2^2051436 is an apocalyptic number.

It is an amenable number.

2051436 is an abundant number, since it is smaller than the sum of its proper divisors (2735276).

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

2051436 is a wasteful number, since it uses less digits than its factorization.

2051436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170960 (or 170958 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2051436 is about 1432.2834914918. The cubic root of 2051436 is about 127.0630641387.

Adding to 2051436 its reverse (6341502), we get a palindrome (8392938).

The spelling of 2051436 in words is "two million, fifty-one thousand, four hundred thirty-six".