20221652 has 24 divisors (see below), whose sum is σ = 39154752. Its totient is φ = 9060800.

The previous prime is 20221639. The next prime is 20221679. The reversal of 20221652 is 25612202.

20221652 is nontrivially palindromic in base 5.

It is a congruent number.

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, 113 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (1631448).

Almost surely, 2^20221652 is an apocalyptic number.

20221652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20221652 is a deficient number, since it is larger than the sum of its proper divisors (18933100).

20221652 is a wasteful number, since it uses less digits than its factorization.

20221652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559 (or 6557 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20221652 is about 4496.8491191055. The cubic root of 20221652 is about 272.4408400597.

Adding to 20221652 its reverse (25612202), we get a palindrome (45833854).

The spelling of 20221652 in words is "twenty million, two hundred twenty-one thousand, six hundred fifty-two".