522349740 has 216 divisors, whose sum is σ = 1803831120. Its totient is φ = 122115840.

The previous prime is 522349733. The next prime is 522349847. The reversal of 522349740 is 47943225.

522349740 is a `hidden beast` number, since 522 + 3 + 4 + 97 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 522349695 and 522349704.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 631207 + ... + 632033.

It is an arithmetic number, because the mean of its divisors is an integer number (8351070).

Almost surely, 2^522349740 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 522349740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901915560).

522349740 is an abundant number, since it is smaller than the sum of its proper divisors (1281481380).

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

522349740 is a wasteful number, since it uses less digits than its factorization.

522349740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 522349740 is about 22854.9718879722. The cubic root of 522349740 is about 805.3545703439.

The spelling of 522349740 in words is "five hundred twenty-two million, three hundred forty-nine thousand, seven hundred forty".