2626122640 has 40 divisors (see below), whose sum is σ = 6130107648. Its totient is φ = 1046256000.

The previous prime is 2626122581. The next prime is 2626122643. The reversal of 2626122640 is 462216262.

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

It is a super-3 number, since 3×2626122640³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2626122643) 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, 45312 + ... + 85471.

Almost surely, 2^2626122640 is an apocalyptic number.

2626122640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2626122640 is an abundant number, since it is smaller than the sum of its proper divisors (3503985008).

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

2626122640 is a wasteful number, since it uses less digits than its factorization.

2626122640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131047 (or 131041 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2626122640 is about 51245.7085032493. The cubic root of 2626122640 is about 1379.6587127748.

The spelling of 2626122640 in words is "two billion, six hundred twenty-six million, one hundred twenty-two thousand, six hundred forty".