531442296 has 160 divisors (see below), whose sum is σ = 1856004480. Its totient is φ = 138024000.

The previous prime is 531442273. The next prime is 531442297. The reversal of 531442296 is 692244135.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 531442296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531442297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44571 + ... + 55221.

It is an arithmetic number, because the mean of its divisors is an integer number (11600028).

Almost surely, 2^531442296 is an apocalyptic number.

531442296 is a gapful number since it is divisible by the number (56) 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 531442296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928002240).

531442296 is an abundant number, since it is smaller than the sum of its proper divisors (1324562184).

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

531442296 is a wasteful number, since it uses less digits than its factorization.

531442296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10687 (or 10674 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 531442296 is about 23053.0322517451. The cubic root of 531442296 is about 810.0006584357. Note that the first 3 decimals are identical.

The spelling of 531442296 in words is "five hundred thirty-one million, four hundred forty-two thousand, two hundred ninety-six".