522426240 has 384 divisors, whose sum is σ = 2155831200. Its totient is φ = 119218176.

The previous prime is 522426227. The next prime is 522426251. The reversal of 522426240 is 42624225.

It is a happy number.

522426240 is a `hidden beast` number, since 522 + 42 + 62 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 846412 + ... + 847028.

Almost surely, 2^522426240 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 522426240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1077915600).

522426240 is an abundant number, since it is smaller than the sum of its proper divisors (1633404960).

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

522426240 is a wasteful number, since it uses less digits than its factorization.

522426240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 522426240 is about 22856.6454231587. The cubic root of 522426240 is about 805.3938841168.

The spelling of 522426240 in words is "five hundred twenty-two million, four hundred twenty-six thousand, two hundred forty".