626222440240 has 40 divisors (see below), whose sum is σ = 1456000278768. Its totient is φ = 250483280640.

The previous prime is 626222440183. The next prime is 626222440241. The reversal of 626222440240 is 42044222626.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 626222440196 and 626222440205.

It is not an unprimeable number, because it can be changed into a prime (626222440241) 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, 6303594 + ... + 6402166.

Almost surely, 2^626222440240 is an apocalyptic number.

It is an amenable number.

626222440240 is an abundant number, since it is smaller than the sum of its proper divisors (829777838528).

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

626222440240 is a wasteful number, since it uses less digits than its factorization.

626222440240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177997 (or 177991 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 626222440240 its reverse (42044222626), we get a palindrome (668266662866).

The spelling of 626222440240 in words is "six hundred twenty-six billion, two hundred twenty-two million, four hundred forty thousand, two hundred forty".