20102652 has 54 divisors (see below), whose sum is σ = 52376688. Its totient is φ = 6498144.

The previous prime is 20102647. The next prime is 20102659. The reversal of 20102652 is 25620102.

20102652 is a `hidden beast` number, since 2 + 0 + 10 + 2 + 652 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102659) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 184374 + ... + 184482.

Almost surely, 2^20102652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20102652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26188344).

20102652 is an abundant number, since it is smaller than the sum of its proper divisors (32274036).

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

20102652 is a wasteful number, since it uses less digits than its factorization.

20102652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20102652 is about 4483.5981086623. The cubic root of 20102652 is about 271.9053700517.

Adding to 20102652 its reverse (25620102), we get a palindrome (45722754).

The spelling of 20102652 in words is "twenty million, one hundred two thousand, six hundred fifty-two".