20153422 has 8 divisors (see below), whose sum is σ = 30328272. Its totient is φ = 10044000.

The previous prime is 20153401. The next prime is 20153423. The reversal of 20153422 is 22435102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20153422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15579 + ... + 16822.

It is an arithmetic number, because the mean of its divisors is an integer number (3791034).

Almost surely, 2^20153422 is an apocalyptic number.

20153422 is a deficient number, since it is larger than the sum of its proper divisors (10174850).

20153422 is a wasteful number, since it uses less digits than its factorization.

20153422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32714.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20153422 is about 4489.2562858451. The cubic root of 20153422 is about 272.1340800173.

Adding to 20153422 its reverse (22435102), we get a palindrome (42588524).

The spelling of 20153422 in words is "twenty million, one hundred fifty-three thousand, four hundred twenty-two".