5270397840 has 360 divisors, whose sum is σ = 19398008448. Its totient is φ = 1329696000.

The previous prime is 5270397799. The next prime is 5270397871. The reversal of 5270397840 is 487930725.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7017465 + ... + 7018215.

Almost surely, 2^5270397840 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 5270397840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9699004224).

5270397840 is an abundant number, since it is smaller than the sum of its proper divisors (14127610608).

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

5270397840 is a wasteful number, since it uses less digits than its factorization.

5270397840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 5270397840 is about 72597.5057422774. The cubic root of 5270397840 is about 1740.2613162822.

The spelling of 5270397840 in words is "five billion, two hundred seventy million, three hundred ninety-seven thousand, eight hundred forty".