522289404 has 192 divisors, whose sum is σ = 1754905600. Its totient is φ = 130450176.

The previous prime is 522289393. The next prime is 522289409. The reversal of 522289404 is 404982225.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522289409) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185334 + ... + 188130.

Almost surely, 2^522289404 is an apocalyptic number.

522289404 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522289404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877452800).

522289404 is an abundant number, since it is smaller than the sum of its proper divisors (1232616196).

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

522289404 is a wasteful number, since it uses less digits than its factorization.

522289404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849 (or 2841 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 522289404 is about 22853.6518744817. The cubic root of 522289404 is about 805.3235606323.

The spelling of 522289404 in words is "five hundred twenty-two million, two hundred eighty-nine thousand, four hundred four".