2044651 has 4 divisors (see below), whose sum is σ = 2336752. Its totient is φ = 1752552.

The previous prime is 2044649. The next prime is 2044661. The reversal of 2044651 is 1564402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2044651 - 2¹ = 2044649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2044621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146040 + ... + 146053.

It is an arithmetic number, because the mean of its divisors is an integer number (584188).

2^2044651 is an apocalyptic number.

2044651 is a deficient number, since it is larger than the sum of its proper divisors (292101).

2044651 is an equidigital number, since it uses as much as digits as its factorization.

2044651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292100.

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

The square root of 2044651 is about 1429.9129344124. The cubic root of 2044651 is about 126.9228249577.

Subtracting from 2044651 its reverse (1564402), we obtain a square (480249 = 693²).

The spelling of 2044651 in words is "two million, forty-four thousand, six hundred fifty-one".