526368388 has 72 divisors (see below), whose sum is σ = 1159273752. Its totient is φ = 207277056.

The previous prime is 526368377. The next prime is 526368413. The reversal of 526368388 is 883863625.

It can be written as a sum of positive squares in 4 ways, for example, as 42016324 + 484352064 = 6482^2 + 22008^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 858370 + ... + 858982.

Almost surely, 2^526368388 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 526368388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579636876).

526368388 is an abundant number, since it is smaller than the sum of its proper divisors (632905364).

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

526368388 is a wasteful number, since it uses less digits than its factorization.

526368388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 972 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The square root of 526368388 is about 22942.7197167206. The cubic root of 526368388 is about 807.4146026942.

The spelling of 526368388 in words is "five hundred twenty-six million, three hundred sixty-eight thousand, three hundred eighty-eight".