2152806 has 12 divisors (see below), whose sum is σ = 4312812. Its totient is φ = 716404.

The previous prime is 2152793. The next prime is 2152811. The reversal of 2152806 is 6082512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3295 + ... + 3893.

It is an arithmetic number, because the mean of its divisors is an integer number (359401).

2^2152806 is an apocalyptic number.

2152806 is an abundant number, since it is smaller than the sum of its proper divisors (2160006).

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

2152806 is an frugal number, since it uses more digits than its factorization.

2152806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2152806 is about 1467.2443559271. The cubic root of 2152806 is about 129.1224124961.

Multiplying 2152806 by its sum of digits (24), we get a square (51667344 = 7188²).

The spelling of 2152806 in words is "two million, one hundred fifty-two thousand, eight hundred six".