2046645 has 12 divisors (see below), whose sum is σ = 3547596. Its totient is φ = 1091520.

The previous prime is 2046641. The next prime is 2046677. The reversal of 2046645 is 5466402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 288369 + 1758276 = 537^2 + 1326^2 .

It is not a de Polignac number, because 2046645 - 2² = 2046641 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 0 + 4² + 6⁶ + 6⁶ + 4³ + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2046641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22696 + ... + 22785.

It is an arithmetic number, because the mean of its divisors is an integer number (295633).

2^2046645 is an apocalyptic number.

It is an amenable number.

2046645 is a deficient number, since it is larger than the sum of its proper divisors (1500951).

2046645 is a wasteful number, since it uses less digits than its factorization.

2046645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45492 (or 45489 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2046645 is about 1430.6100097511. The cubic root of 2046645 is about 126.9640710980.

It can be divided in two parts, 20 and 46645, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 2046645 in words is "two million, forty-six thousand, six hundred forty-five".