530440020 has 72 divisors (see below), whose sum is σ = 1755280800. Its totient is φ = 128591040.

The previous prime is 530440003. The next prime is 530440067. The reversal of 530440020 is 20044035.

It is a happy number.

It is a super-2 number, since 2×530440020² = 562733229635200800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 530439975 and 530440002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131970 + ... + 135929.

It is an arithmetic number, because the mean of its divisors is an integer number (24378900).

Almost surely, 2^530440020 is an apocalyptic number.

It is an amenable number.

530440020 is an abundant number, since it is smaller than the sum of its proper divisors (1224840780).

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

530440020 is a wasteful number, since it uses less digits than its factorization.

530440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267925 (or 267920 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 530440020 is about 23031.2835074383. The cubic root of 530440020 is about 809.4911298512.

Adding to 530440020 its reverse (20044035), we get a palindrome (550484055).

The spelling of 530440020 in words is "five hundred thirty million, four hundred forty thousand, twenty".