531035380 has 48 divisors (see below), whose sum is σ = 1144059840. Its totient is φ = 206938368.

The previous prime is 531035287. The next prime is 531035381. The reversal of 531035380 is 83530135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531035381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566272 + ... + 567208.

It is an arithmetic number, because the mean of its divisors is an integer number (23834580).

Almost surely, 2^531035380 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 531035380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572029920).

531035380 is an abundant number, since it is smaller than the sum of its proper divisors (613024460).

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

531035380 is a wasteful number, since it uses less digits than its factorization.

531035380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 531035380 is about 23044.2049114306. The cubic root of 531035380 is about 809.7938712393.

The spelling of 531035380 in words is "five hundred thirty-one million, thirty-five thousand, three hundred eighty".