2056401 has 8 divisors (see below), whose sum is σ = 3046560. Its totient is φ = 1370916.

The previous prime is 2056399. The next prime is 2056403. The reversal of 2056401 is 1046502.

It is a happy number.

2056401 is a `hidden beast` number, since 20 + 5 + 640 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2056399) and next prime (2056403).

It is not a de Polignac number, because 2056401 - 2¹ = 2056399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2056403) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38055 + ... + 38108.

It is an arithmetic number, because the mean of its divisors is an integer number (380820).

2^2056401 is an apocalyptic number.

It is an amenable number.

2056401 is a deficient number, since it is larger than the sum of its proper divisors (990159).

2056401 is an equidigital number, since it uses as much as digits as its factorization.

2056401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76172 (or 76166 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2056401 is about 1434.0156902907. The cubic root of 2056401 is about 127.1654899261.

The spelling of 2056401 in words is "two million, fifty-six thousand, four hundred one".