530978240 has 112 divisors (see below), whose sum is σ = 1375318560. Its totient is φ = 194088960.

The previous prime is 530978213. The next prime is 530978243. The reversal of 530978240 is 42879035.

It is a junction number, because it is equal to n+sod(n) for n = 530978194 and 530978203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530978243) 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, 452855 + ... + 454025.

It is an arithmetic number, because the mean of its divisors is an integer number (12279630).

Almost surely, 2^530978240 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 530978240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687659280).

530978240 is an abundant number, since it is smaller than the sum of its proper divisors (844340320).

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

530978240 is a wasteful number, since it uses less digits than its factorization.

530978240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 530978240 is about 23042.9650869848. The cubic root of 530978240 is about 809.7648252892.

The spelling of 530978240 in words is "five hundred thirty million, nine hundred seventy-eight thousand, two hundred forty".