526422780 has 384 divisors, whose sum is σ = 1896652800. Its totient is φ = 120268800.

The previous prime is 526422779. The next prime is 526422823. The reversal of 526422780 is 87224625.

526422780 is a `hidden beast` number, since 5 + 2 + 642 + 2 + 7 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8922391 + ... + 8922449.

It is an arithmetic number, because the mean of its divisors is an integer number (4939200).

Almost surely, 2^526422780 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 526422780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948326400).

526422780 is an abundant number, since it is smaller than the sum of its proper divisors (1370230020).

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

526422780 is a wasteful number, since it uses less digits than its factorization.

526422780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 526422780 is about 22943.9050730254. The cubic root of 526422780 is about 807.4424129905.

The spelling of 526422780 in words is "five hundred twenty-six million, four hundred twenty-two thousand, seven hundred eighty".