522440940 has 144 divisors (see below), whose sum is σ = 1801935072. Its totient is φ = 112379904.

The previous prime is 522440939. The next prime is 522440953. The reversal of 522440940 is 49044225.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 522440898 and 522440907.

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, 44754 + ... + 55206.

It is an arithmetic number, because the mean of its divisors is an integer number (12513438).

Almost surely, 2^522440940 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 522440940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (900967536).

522440940 is an abundant number, since it is smaller than the sum of its proper divisors (1279494132).

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

522440940 is a wasteful number, since it uses less digits than its factorization.

522440940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10496 (or 10487 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 522440940 is about 22856.9669903949. The cubic root of 522440940 is about 805.4014380885.

It can be divided in two parts, 5224 and 40940, that added together give a palindrome (46164).

The spelling of 522440940 in words is "five hundred twenty-two million, four hundred forty thousand, nine hundred forty".