2651646 has 16 divisors (see below), whose sum is σ = 5416704. Its totient is φ = 864984.

The previous prime is 2651639. The next prime is 2651651. The reversal of 2651646 is 6461562.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4420 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (338544).

2^2651646 is an apocalyptic number.

2651646 is an abundant number, since it is smaller than the sum of its proper divisors (2765058).

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

2651646 is a wasteful number, since it uses less digits than its factorization.

2651646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9455.

The product of its digits is 8640, while the sum is 30.

The square root of 2651646 is about 1628.3875460099. The cubic root of 2651646 is about 138.4113957561.

It can be divided in two parts, 26516 and 46, that added together give a palindrome (26562).

The spelling of 2651646 in words is "two million, six hundred fifty-one thousand, six hundred forty-six".