622193603401 has 4 divisors (see below), whose sum is σ = 622998511812. Its totient is φ = 621388694992.

The previous prime is 622193603387. The next prime is 622193603441. The reversal of 622193603401 is 104306391226.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45541694025 + 576651909376 = 213405^2 + 759376^2 .

It is a cyclic number.

It is not a de Polignac number, because 622193603401 - 2²¹ = 622191506249 is a prime.

It is a super-2 number, since 2×622193603401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622193603441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402453046 + ... + 402454591.

It is an arithmetic number, because the mean of its divisors is an integer number (155749627953).

Almost surely, 2^622193603401 is an apocalyptic number.

It is an amenable number.

622193603401 is a deficient number, since it is larger than the sum of its proper divisors (804908411).

622193603401 is an equidigital number, since it uses as much as digits as its factorization.

622193603401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804908410.

The product of its (nonzero) digits is 46656, while the sum is 37.

Adding to 622193603401 its reverse (104306391226), we get a palindrome (726499994627).

The spelling of 622193603401 in words is "six hundred twenty-two billion, one hundred ninety-three million, six hundred three thousand, four hundred one".