2646556 has 12 divisors (see below), whose sum is σ = 5052600. Its totient is φ = 1202960.

The previous prime is 2646551. The next prime is 2646571. The reversal of 2646556 is 6556462.

It is a super-2 number, since 2×2646556² = 14008517322272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646551) 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, 30031 + ... + 30118.

It is an arithmetic number, because the mean of its divisors is an integer number (421050).

2^2646556 is an apocalyptic number.

It is an amenable number.

2646556 is a deficient number, since it is larger than the sum of its proper divisors (2406044).

2646556 is a wasteful number, since it uses less digits than its factorization.

2646556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60164 (or 60162 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 2646556 is about 1626.8238995048. The cubic root of 2646556 is about 138.3227759237.

The spelling of 2646556 in words is "two million, six hundred forty-six thousand, five hundred fifty-six".