2646343260 has 144 divisors (see below), whose sum is σ = 8839539072. Its totient is φ = 635491200.

The previous prime is 2646343213. The next prime is 2646343277. The reversal of 2646343260 is 623436462.

2646343260 is a `hidden beast` number, since 2 + 646 + 3 + 4 + 3 + 2 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205615 + ... + 218105.

It is an arithmetic number, because the mean of its divisors is an integer number (61385688).

Almost surely, 2^2646343260 is an apocalyptic number.

2646343260 is a gapful number since it is divisible by the number (20) 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 2646343260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4419769536).

2646343260 is an abundant number, since it is smaller than the sum of its proper divisors (6193195812).

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

2646343260 is a wasteful number, since it uses less digits than its factorization.

2646343260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12624 (or 12619 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 2646343260 is about 51442.6210451995. The cubic root of 2646343260 is about 1383.1906952491.

The spelling of 2646343260 in words is "two billion, six hundred forty-six million, three hundred forty-three thousand, two hundred sixty".