5266340440 has 16 divisors (see below), whose sum is σ = 11849266080. Its totient is φ = 2106536160.

The previous prime is 5266340411. The next prime is 5266340449. The reversal of 5266340440 is 440436625.

It is a junction number, because it is equal to n+sod(n) for n = 5266340396 and 5266340405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5266340449) 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, 65829216 + ... + 65829295.

It is an arithmetic number, because the mean of its divisors is an integer number (740579130).

Almost surely, 2^5266340440 is an apocalyptic number.

It is an amenable number.

5266340440 is an abundant number, since it is smaller than the sum of its proper divisors (6582925640).

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

5266340440 is a wasteful number, since it uses less digits than its factorization.

5266340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131658522 (or 131658518 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 5266340440 is about 72569.5558757252. Note that the first 3 decimals coincide. The cubic root of 5266340440 is about 1739.8146233126.

The spelling of 5266340440 in words is "five billion, two hundred sixty-six million, three hundred forty thousand, four hundred forty".