2051434 has 36 divisors (see below), whose sum is σ = 3957282. Its totient is φ = 794640.

The previous prime is 2051429. The next prime is 2051437. The reversal of 2051434 is 4341502.

It can be written as a sum of positive squares in only one way, i.e., 1334025 + 717409 = 1155^2 + 847^2 .

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 17 ways as a sum of consecutive naturals, for example, 11772 + ... + 11944.

2^2051434 is an apocalyptic number.

2051434 is a deficient number, since it is larger than the sum of its proper divisors (1905848).

2051434 is a wasteful number, since it uses less digits than its factorization.

2051434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2051434 is about 1432.2827933058. The cubic root of 2051434 is about 127.0630228463.

Adding to 2051434 its reverse (4341502), we get a palindrome (6392936).

It can be divided in two parts, 2051 and 434, that added together give a triangular number (2485 = T₇₀).

The spelling of 2051434 in words is "two million, fifty-one thousand, four hundred thirty-four".