2129568 has 48 divisors (see below), whose sum is σ = 6390720. Its totient is φ = 608256.

The previous prime is 2129551. The next prime is 2129579. The reversal of 2129568 is 8659212.

It is a tau number, because it is divible by the number of its divisors (48).

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, 913 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (133140).

2^2129568 is an apocalyptic number.

2129568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2129568 is an abundant number, since it is smaller than the sum of its proper divisors (4261152).

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

2129568 is a wasteful number, since it uses less digits than its factorization.

2129568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189 (or 3181 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 2129568 is about 1459.3039436663. The cubic root of 2129568 is about 128.6561360665.

The spelling of 2129568 in words is "two million, one hundred twenty-nine thousand, five hundred sixty-eight".