531032340 has 96 divisors (see below), whose sum is σ = 1557118080. Its totient is φ = 135041536.

The previous prime is 531032317. The next prime is 531032347. The reversal of 531032340 is 43230135.

It is a super-2 number, since 2×531032340² = 563990692251751200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531032347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142582 + ... + 146258.

It is an arithmetic number, because the mean of its divisors is an integer number (16219980).

Almost surely, 2^531032340 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 531032340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (778559040).

531032340 is an abundant number, since it is smaller than the sum of its proper divisors (1026085740).

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

531032340 is a wasteful number, since it uses less digits than its factorization.

531032340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801 (or 3799 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 531032340 is about 23044.1389511520. The cubic root of 531032340 is about 809.7923259700.

Adding to 531032340 its reverse (43230135), we get a palindrome (574262475).

The spelling of 531032340 in words is "five hundred thirty-one million, thirty-two thousand, three hundred forty".