201622342 has 4 divisors (see below), whose sum is σ = 302433516. Its totient is φ = 100811170.

The previous prime is 201622327. The next prime is 201622367. The reversal of 201622342 is 243226102.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50405584 + ... + 50405587.

It is an arithmetic number, because the mean of its divisors is an integer number (75608379).

Almost surely, 2^201622342 is an apocalyptic number.

201622342 is a deficient number, since it is larger than the sum of its proper divisors (100811174).

201622342 is a wasteful number, since it uses less digits than its factorization.

201622342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100811173.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 201622342 is about 14199.3782258238. The cubic root of 201622342 is about 586.3805435154.

Adding to 201622342 its reverse (243226102), we get a palindrome (444848444).

The spelling of 201622342 in words is "two hundred one million, six hundred twenty-two thousand, three hundred forty-two".