2041645 has 8 divisors (see below), whose sum is σ = 2579040. Its totient is φ = 1547280.

The previous prime is 2041643. The next prime is 2041661. The reversal of 2041645 is 5461402.

2041645 = T₁₅₈ + T₁₅₉ + ... + T₂₅₂.

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

It is not a de Polignac number, because 2041645 - 2¹ = 2041643 is a prime.

It is a super-3 number, since 3×2041645³ = 25530654183973233375, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041643) 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, 10651 + ... + 10840.

It is an arithmetic number, because the mean of its divisors is an integer number (322380).

2^2041645 is an apocalyptic number.

It is an amenable number.

2041645 is a deficient number, since it is larger than the sum of its proper divisors (537395).

2041645 is a wasteful number, since it uses less digits than its factorization.

2041645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21515.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2041645 is about 1428.8614348494. The cubic root of 2041645 is about 126.8605947553.

It can be divided in two parts, 204 and 1645, that added together give a square (1849 = 43²).

The spelling of 2041645 in words is "two million, forty-one thousand, six hundred forty-five".