2051420 has 24 divisors (see below), whose sum is σ = 4923744. Its totient is φ = 703296.

The previous prime is 2051419. The next prime is 2051429. The reversal of 2051420 is 241502.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2051395 and 2051404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051429) 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 7 ways as a sum of consecutive naturals, for example, 7187 + ... + 7466.

It is an arithmetic number, because the mean of its divisors is an integer number (205156).

2^2051420 is an apocalyptic number.

2051420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051420 is an abundant number, since it is smaller than the sum of its proper divisors (2872324).

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

2051420 is a wasteful number, since it uses less digits than its factorization.

2051420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14669 (or 14667 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2051420 is about 1432.2779059945. The cubic root of 2051420 is about 127.0627337987.

Adding to 2051420 its reverse (241502), we get a palindrome (2292922).

The spelling of 2051420 in words is "two million, fifty-one thousand, four hundred twenty".