5266444320 has 288 divisors, whose sum is σ = 19742486400. Its totient is φ = 1272471552.

The previous prime is 5266444319. The next prime is 5266444361. The reversal of 5266444320 is 234446625.

5266444320 is a `hidden beast` number, since 5 + 2 + 6 + 644 + 4 + 3 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 625096 + ... + 633464.

It is an arithmetic number, because the mean of its divisors is an integer number (68550300).

Almost surely, 2^5266444320 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 5266444320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9871243200).

5266444320 is an abundant number, since it is smaller than the sum of its proper divisors (14476042080).

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

5266444320 is a wasteful number, since it uses less digits than its factorization.

5266444320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8432 (or 8421 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 5266444320 is about 72570.2715993264. The cubic root of 5266444320 is about 1739.8260626765.

The spelling of 5266444320 in words is "five billion, two hundred sixty-six million, four hundred forty-four thousand, three hundred twenty".