526064240 has 80 divisors (see below), whose sum is σ = 1321790400. Its totient is φ = 193560576.

The previous prime is 526064221. The next prime is 526064243. The reversal of 526064240 is 42460625.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526064243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372656 + ... + 374064.

It is an arithmetic number, because the mean of its divisors is an integer number (16522380).

Almost surely, 2^526064240 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 526064240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660895200).

526064240 is an abundant number, since it is smaller than the sum of its proper divisors (795726160).

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

526064240 is a wasteful number, since it uses less digits than its factorization.

526064240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794 (or 1788 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 526064240 is about 22936.0903381548. The cubic root of 526064240 is about 807.2590583665.

The spelling of 526064240 in words is "five hundred twenty-six million, sixty-four thousand, two hundred forty".