526471220 has 96 divisors (see below), whose sum is σ = 1257379200. Its totient is φ = 183411200.

The previous prime is 526471217. The next prime is 526471259. The reversal of 526471220 is 22174625.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1141790 + ... + 1142250.

It is an arithmetic number, because the mean of its divisors is an integer number (13097700).

Almost surely, 2^526471220 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 526471220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628689600).

526471220 is an abundant number, since it is smaller than the sum of its proper divisors (730907980).

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

526471220 is a wasteful number, since it uses less digits than its factorization.

526471220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 526471220 is about 22944.9606667782. The cubic root of 526471220 is about 807.4671784530.

The spelling of 526471220 in words is "five hundred twenty-six million, four hundred seventy-one thousand, two hundred twenty".