20852616 has 32 divisors (see below), whose sum is σ = 52416000. Its totient is φ = 6912960.

The previous prime is 20852609. The next prime is 20852617. The reversal of 20852616 is 61625802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20852617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2310 + ... + 6858.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 2^20852616 is an apocalyptic number.

It is an amenable number.

20852616 is an abundant number, since it is smaller than the sum of its proper divisors (31563384).

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

20852616 is a wasteful number, since it uses less digits than its factorization.

20852616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749 (or 4745 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 20852616 is about 4566.4664676312. The cubic root of 20852616 is about 275.2454711798.

The spelling of 20852616 in words is "twenty million, eight hundred fifty-two thousand, six hundred sixteen".