2051284 has 6 divisors (see below), whose sum is σ = 3589754. Its totient is φ = 1025640.

The previous prime is 2051281. The next prime is 2051311. The reversal of 2051284 is 4821502.

It can be written as a sum of positive squares in only one way, i.e., 2039184 + 12100 = 1428^2 + 110^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256407 + ... + 256414.

2^2051284 is an apocalyptic number.

It is an amenable number.

2051284 is a deficient number, since it is larger than the sum of its proper divisors (1538470).

2051284 is a wasteful number, since it uses less digits than its factorization.

2051284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512825 (or 512823 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2051284 is about 1432.2304283878. The cubic root of 2051284 is about 127.0599258390.

Adding to 2051284 its reverse (4821502), we get a palindrome (6872786).

The spelling of 2051284 in words is "two million, fifty-one thousand, two hundred eighty-four".