5440126640 has 160 divisors (see below), whose sum is σ = 13979480256. Its totient is φ = 1956556800.

The previous prime is 5440126631. The next prime is 5440126649. The reversal of 5440126640 is 466210445.

It is an interprime number because it is at equal distance from previous prime (5440126631) and next prime (5440126649).

It is a junction number, because it is equal to n+sod(n) for n = 5440126597 and 5440126606.

It is not an unprimeable number, because it can be changed into a prime (5440126649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7037294 + ... + 7038066.

Almost surely, 2^5440126640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5440126640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6989740128).

5440126640 is an abundant number, since it is smaller than the sum of its proper divisors (8539353616).

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

5440126640 is a wasteful number, since it uses less digits than its factorization.

5440126640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 5440126640 is about 73757.2141556336. The cubic root of 5440126640 is about 1758.7455161718.

The spelling of 5440126640 in words is "five billion, four hundred forty million, one hundred twenty-six thousand, six hundred forty".