622002181 has 8 divisors (see below), whose sum is σ = 638827904. Its totient is φ = 605283840.

The previous prime is 622002169. The next prime is 622002191. The reversal of 622002181 is 181200226.

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

It is a cyclic number.

It is not a de Polignac number, because 622002181 - 2¹⁹ = 621477893 is a prime.

It is a super-2 number, since 2×622002181² = 773773426337513522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622002191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15036 + ... + 38341.

It is an arithmetic number, because the mean of its divisors is an integer number (79853488).

Almost surely, 2^622002181 is an apocalyptic number.

It is an amenable number.

622002181 is a deficient number, since it is larger than the sum of its proper divisors (16825723).

622002181 is a wasteful number, since it uses less digits than its factorization.

622002181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53691.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 622002181 is about 24939.9715517079. The cubic root of 622002181 is about 853.6187956724.

The spelling of 622002181 in words is "six hundred twenty-two million, two thousand, one hundred eighty-one".