522037440 has 448 divisors, whose sum is σ = 2001438720. Its totient is φ = 127733760.

The previous prime is 522037393. The next prime is 522037457. The reversal of 522037440 is 44730225.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7352605 + ... + 7352675.

Almost surely, 2^522037440 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 522037440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000719360).

522037440 is an abundant number, since it is smaller than the sum of its proper divisors (1479401280).

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

522037440 is a wasteful number, since it uses less digits than its factorization.

522037440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 522037440 is about 22848.1386550415. The cubic root of 522037440 is about 805.1940378156.

Adding to 522037440 its reverse (44730225), we get a palindrome (566767665).

The spelling of 522037440 in words is "five hundred twenty-two million, thirty-seven thousand, four hundred forty".