2051020 has 12 divisors (see below), whose sum is σ = 4307184. Its totient is φ = 820400.

The previous prime is 2050987. The next prime is 2051041. The reversal of 2051020 is 201502.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2050988 and 2051006.

It is an unprimeable number.

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, 51256 + ... + 51295.

It is an arithmetic number, because the mean of its divisors is an integer number (358932).

2^2051020 is an apocalyptic number.

2051020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051020 is an abundant number, since it is smaller than the sum of its proper divisors (2256164).

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

2051020 is a wasteful number, since it uses less digits than its factorization.

2051020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102560 (or 102558 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 2051020 is about 1432.1382614818. The cubic root of 2051020 is about 127.0544747395.

Adding to 2051020 its reverse (201502), we get a palindrome (2252522).

It can be divided in two parts, 205 and 1020, that added together give a triangular number (1225 = T₄₉).

The spelling of 2051020 in words is "two million, fifty-one thousand, twenty".