2646940 has 12 divisors (see below), whose sum is σ = 5558616. Its totient is φ = 1058768.

The previous prime is 2646937. The next prime is 2646967. The reversal of 2646940 is 496462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66154 + ... + 66193.

It is an arithmetic number, because the mean of its divisors is an integer number (463218).

2^2646940 is an apocalyptic number.

2646940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2646940 is an abundant number, since it is smaller than the sum of its proper divisors (2911676).

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

2646940 is a wasteful number, since it uses less digits than its factorization.

2646940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132356 (or 132354 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2646940 is about 1626.9419166030. The cubic root of 2646940 is about 138.3294655456.

The spelling of 2646940 in words is "two million, six hundred forty-six thousand, nine hundred forty".