530212140 has 72 divisors (see below), whose sum is σ = 1630382208. Its totient is φ = 139449600.

The previous prime is 530212129. The next prime is 530212147. The reversal of 530212140 is 41212035.

It is a super-2 number, since 2×530212140² = 562249826806759200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (530212147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7036 + ... + 33315.

Almost surely, 2^530212140 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 530212140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815191104).

530212140 is an abundant number, since it is smaller than the sum of its proper divisors (1100170068).

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

530212140 is a wasteful number, since it uses less digits than its factorization.

530212140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40439 (or 40434 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 530212140 is about 23026.3357918710. The cubic root of 530212140 is about 809.3751926079.

Adding to 530212140 its reverse (41212035), we get a palindrome (571424175).

The spelling of 530212140 in words is "five hundred thirty million, two hundred twelve thousand, one hundred forty".