2051904 has 28 divisors (see below), whose sum is σ = 5429504. Its totient is φ = 683904.

The previous prime is 2051893. The next prime is 2051923. The reversal of 2051904 is 4091502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5152 + ... + 5535.

2^2051904 is an apocalyptic number.

2051904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2051904 is an abundant number, since it is smaller than the sum of its proper divisors (3377600).

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

2051904 is a wasteful number, since it uses less digits than its factorization.

2051904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10702 (or 10692 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2051904 is about 1432.4468576530. The cubic root of 2051904 is about 127.0727258249.

The spelling of 2051904 in words is "two million, fifty-one thousand, nine hundred four".