2051418 has 16 divisors (see below), whose sum is σ = 4180896. Its totient is φ = 670800.

The previous prime is 2051417. The next prime is 2051419. The reversal of 2051418 is 8141502.

It is an interprime number because it is at equal distance from previous prime (2051417) and next prime (2051419).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2051394 and 2051403.

It is not an unprimeable number, because it can be changed into a prime (2051417) 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, 2908 + ... + 3543.

It is an arithmetic number, because the mean of its divisors is an integer number (261306).

2^2051418 is an apocalyptic number.

2051418 is an abundant number, since it is smaller than the sum of its proper divisors (2129478).

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

2051418 is a wasteful number, since it uses less digits than its factorization.

2051418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 2051418 is about 1432.2772078058. The cubic root of 2051418 is about 127.0626925060.

The spelling of 2051418 in words is "two million, fifty-one thousand, four hundred eighteen".