20622328 has 8 divisors (see below), whose sum is σ = 38666880. Its totient is φ = 10311160.

The previous prime is 20622323. The next prime is 20622337. The reversal of 20622328 is 82322602.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20622323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1288888 + ... + 1288903.

It is an arithmetic number, because the mean of its divisors is an integer number (4833360).

Almost surely, 2^20622328 is an apocalyptic number.

It is an amenable number.

20622328 is a deficient number, since it is larger than the sum of its proper divisors (18044552).

20622328 is a wasteful number, since it uses less digits than its factorization.

20622328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577797 (or 2577793 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 20622328 is about 4541.1813440998. The cubic root of 20622328 is about 274.2284843602.

The spelling of 20622328 in words is "twenty million, six hundred twenty-two thousand, three hundred twenty-eight".