523422000 has 280 divisors, whose sum is σ = 1902869280. Its totient is φ = 139190400.

The previous prime is 523421947. The next prime is 523422007. The reversal of 523422000 is 224325.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (523422007) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1457821 + ... + 1458179.

Almost surely, 2^523422000 is an apocalyptic number.

523422000 is a gapful number since it is divisible by the number (50) 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 523422000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951434640).

523422000 is an abundant number, since it is smaller than the sum of its proper divisors (1379447280).

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

523422000 is an equidigital number, since it uses as much as digits as its factorization.

523422000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 523422000 is about 22878.4177774600. The cubic root of 523422000 is about 805.9052609452.

Adding to 523422000 its reverse (224325), we get a palindrome (523646325).

The spelling of 523422000 in words is "five hundred twenty-three million, four hundred twenty-two thousand".