622097181 has 48 divisors (see below), whose sum is σ = 949731328. Its totient is φ = 391910400.

The previous prime is 622097171. The next prime is 622097197. The reversal of 622097181 is 181790226.

It is not a de Polignac number, because 622097181 - 2⁵ = 622097149 is a prime.

It is a super-2 number, since 2×622097181² = 774009805216293522, 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 (622097111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3436911 + ... + 3437091.

Almost surely, 2^622097181 is an apocalyptic number.

It is an amenable number.

622097181 is a deficient number, since it is larger than the sum of its proper divisors (327634147).

622097181 is a wasteful number, since it uses less digits than its factorization.

622097181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 622097181 is about 24941.8760521337. The cubic root of 622097181 is about 853.6622519281.

The spelling of 622097181 in words is "six hundred twenty-two million, ninety-seven thousand, one hundred eighty-one".