2045646 has 12 divisors (see below), whose sum is σ = 4432272. Its totient is φ = 681876.

The previous prime is 2045629. The next prime is 2045647. The reversal of 2045646 is 6465402.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56806 + ... + 56841.

It is an arithmetic number, because the mean of its divisors is an integer number (369356).

2^2045646 is an apocalyptic number.

2045646 is an abundant number, since it is smaller than the sum of its proper divisors (2386626).

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

2045646 is a wasteful number, since it uses less digits than its factorization.

2045646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113655 (or 113652 counting only the distinct ones).

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

The square root of 2045646 is about 1430.2608153760. The cubic root of 2045646 is about 126.9434100080.

It can be divided in two parts, 20456 and 46, that added together give a palindrome (20502).

The spelling of 2045646 in words is "two million, forty-five thousand, six hundred forty-six".