5423267840 has 128 divisors (see below), whose sum is σ = 13211856000. Its totient is φ = 2136735744.

The previous prime is 5423267833. The next prime is 5423267849. The reversal of 5423267840 is 487623245.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (5423267849) 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, 12943151 + ... + 12943569.

It is an arithmetic number, because the mean of its divisors is an integer number (103217625).

Almost surely, 2^5423267840 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 5423267840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6605928000).

5423267840 is an abundant number, since it is smaller than the sum of its proper divisors (7788588160).

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

5423267840 is an frugal number, since it uses more digits than its factorization.

5423267840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 5423267840 is about 73642.8397062471. The cubic root of 5423267840 is about 1756.9268685412.

The spelling of 5423267840 in words is "five billion, four hundred twenty-three million, two hundred sixty-seven thousand, eight hundred forty".