526320340 has 96 divisors (see below), whose sum is σ = 1440440064. Its totient is φ = 156764160.

The previous prime is 526320337. The next prime is 526320367. The reversal of 526320340 is 43023625.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22435 + ... + 39445.

It is an arithmetic number, because the mean of its divisors is an integer number (15004584).

Almost surely, 2^526320340 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 526320340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720220032).

526320340 is an abundant number, since it is smaller than the sum of its proper divisors (914119724).

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

526320340 is a wasteful number, since it uses less digits than its factorization.

526320340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17057 (or 17055 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 526320340 is about 22941.6725632636. The cubic root of 526320340 is about 807.3900344525.

Adding to 526320340 its reverse (43023625), we get a palindrome (569343965).

The spelling of 526320340 in words is "five hundred twenty-six million, three hundred twenty thousand, three hundred forty".