535440020 has 24 divisors (see below), whose sum is σ = 1137061800. Its totient is φ = 211768832.

The previous prime is 535439953. The next prime is 535440043. The reversal of 535440020 is 20044535.

It can be written as a sum of positive squares in 4 ways, for example, as 112232836 + 423207184 = 10594^2 + 20572^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148625 + ... + 152184.

It is an arithmetic number, because the mean of its divisors is an integer number (47377575).

Almost surely, 2^535440020 is an apocalyptic number.

It is an amenable number.

535440020 is an abundant number, since it is smaller than the sum of its proper divisors (601621780).

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

535440020 is a wasteful number, since it uses less digits than its factorization.

535440020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300907 (or 300905 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 535440020 is about 23139.5769192092. The cubic root of 535440020 is about 812.0266377245.

Adding to 535440020 its reverse (20044535), we get a palindrome (555484555).

The spelling of 535440020 in words is "five hundred thirty-five million, four hundred forty thousand, twenty".