2646512 has 30 divisors (see below), whose sum is σ = 5640264. Its totient is φ = 1202080.

The previous prime is 2646493. The next prime is 2646517. The reversal of 2646512 is 2156462.

It is a super-2 number, since 2×2646512² = 14008051532288, which contains 22 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1253 + ... + 2619.

2^2646512 is an apocalyptic number.

2646512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2646512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2820132).

2646512 is an abundant number, since it is smaller than the sum of its proper divisors (2993752).

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

2646512 is a wasteful number, since it uses less digits than its factorization.

2646512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1380 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 2646512 is about 1626.8103761656. The cubic root of 2646512 is about 138.3220093632.

It can be divided in two parts, 264 and 6512, that added together give a palindrome (6776).

The spelling of 2646512 in words is "two million, six hundred forty-six thousand, five hundred twelve".