626641122 has 16 divisors (see below), whose sum is σ = 1254162240. Its totient is φ = 208733712.

The previous prime is 626641121. The next prime is 626641129. The reversal of 626641122 is 221146626.

It is a self number, because there is not a number n which added to its sum of digits gives 626641122.

It is not an unprimeable number, because it can be changed into a prime (626641121) 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, 27222 + ... + 44657.

It is an arithmetic number, because the mean of its divisors is an integer number (78385140).

Almost surely, 2^626641122 is an apocalyptic number.

626641122 is an abundant number, since it is smaller than the sum of its proper divisors (627521118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

626641122 is a wasteful number, since it uses less digits than its factorization.

626641122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73337.

The product of its digits is 6912, while the sum is 30.

The square root of 626641122 is about 25032.8009219903. The cubic root of 626641122 is about 855.7356604008.

Adding to 626641122 its reverse (221146626), we get a palindrome (847787748).

The spelling of 626641122 in words is "six hundred twenty-six million, six hundred forty-one thousand, one hundred twenty-two".