2044657 has 8 divisors (see below), whose sum is σ = 2131496. Its totient is φ = 1959552.

The previous prime is 2044649. The next prime is 2044661. The reversal of 2044657 is 7564402.

It can be written as a sum of positive squares in 4 ways, for example, as 876096 + 1168561 = 936^2 + 1081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2044657 - 2³ = 2044649 is a prime.

It is a deceptive number, since it divides R_2044656.

2044657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2044697) 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, 2323 + ... + 3079.

It is an arithmetic number, because the mean of its divisors is an integer number (266437).

2^2044657 is an apocalyptic number.

It is an amenable number.

2044657 is a deficient number, since it is larger than the sum of its proper divisors (86839).

2044657 is an equidigital number, since it uses as much as digits as its factorization.

2044657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2044657 is about 1429.9150324407. The cubic root of 2044657 is about 126.9229491087.

It can be divided in two parts, 20446 and 57, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 2044657 in words is "two million, forty-four thousand, six hundred fifty-seven".