2040651 has 12 divisors (see below), whose sum is σ = 3016728. Its totient is φ = 1328544.

The previous prime is 2040641. The next prime is 2040653. The reversal of 2040651 is 1560402.

It is a happy number.

It is not a de Polignac number, because 2040651 - 2¹⁵ = 2007883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2040653) 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, 2250 + ... + 3023.

It is an arithmetic number, because the mean of its divisors is an integer number (251394).

2^2040651 is an apocalyptic number.

2040651 is a deficient number, since it is larger than the sum of its proper divisors (976077).

2040651 is a wasteful number, since it uses less digits than its factorization.

2040651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322 (or 5319 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2040651 is about 1428.5135631138. The cubic root of 2040651 is about 126.8400035325.

Subtracting from 2040651 its reverse (1560402), we obtain a square (480249 = 693²).

The spelling of 2040651 in words is "two million, forty thousand, six hundred fifty-one".