530143644 has 24 divisors (see below), whose sum is σ = 1263322368. Its totient is φ = 172954480.

The previous prime is 530143633. The next prime is 530143661. The reversal of 530143644 is 446341035.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 469422 + ... + 470549.

It is an arithmetic number, because the mean of its divisors is an integer number (52638432).

Almost surely, 2^530143644 is an apocalyptic number.

It is an amenable number.

530143644 is an abundant number, since it is smaller than the sum of its proper divisors (733178724).

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

530143644 is a wasteful number, since it uses less digits than its factorization.

530143644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940025 (or 940023 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 530143644 is about 23024.8484034097. The cubic root of 530143644 is about 809.3403377850.

Adding to 530143644 its reverse (446341035), we get a palindrome (976484679).

The spelling of 530143644 in words is "five hundred thirty million, one hundred forty-three thousand, six hundred forty-four".