531223392 has 96 divisors (see below), whose sum is σ = 1648684800. Its totient is φ = 146539008.

The previous prime is 531223373. The next prime is 531223397. The reversal of 531223392 is 293322135.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531223397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5859 + ... + 33117.

It is an arithmetic number, because the mean of its divisors is an integer number (17173800).

Almost surely, 2^531223392 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 531223392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (824342400).

531223392 is an abundant number, since it is smaller than the sum of its proper divisors (1117461408).

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

531223392 is a wasteful number, since it uses less digits than its factorization.

531223392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27308 (or 27300 counting only the distinct ones).

The product of its digits is 9720, while the sum is 30.

The square root of 531223392 is about 23048.2839274424. The cubic root of 531223392 is about 809.8894285892.

The spelling of 531223392 in words is "five hundred thirty-one million, two hundred twenty-three thousand, three hundred ninety-two".