2055378 has 24 divisors (see below), whose sum is σ = 4453488. Its totient is φ = 632112.

The previous prime is 2055367. The next prime is 2055397. The reversal of 2055378 is 8735502.

It is a happy number.

2055378 is a nontrivial binomial coefficient, being equal to C(2028, 2).

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 11 ways as a sum of consecutive naturals, for example, 1 + ... + 2027.

It is an arithmetic number, because the mean of its divisors is an integer number (185562).

2^2055378 is an apocalyptic number.

2055378 is the 2027-th triangular number and also the 1014-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2226744).

2055378 is an abundant number, since it is smaller than the sum of its proper divisors (2398110).

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

2055378 is a wasteful number, since it uses less digits than its factorization.

2055378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2055378 is about 1433.6589552610. The cubic root of 2055378 is about 127.1443993777.

The spelling of 2055378 in words is "two million, fifty-five thousand, three hundred seventy-eight".