535481280 has 280 divisors, whose sum is σ = 1937717232. Its totient is φ = 140341248.

The previous prime is 535481251. The next prime is 535481281. The reversal of 535481280 is 82184535.

It is a happy number.

535481280 is a `hidden beast` number, since 535 + 48 + 1 + 2 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535481281) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 1892019 + ... + 1892301.

Almost surely, 2^535481280 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 535481280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968858616).

535481280 is an abundant number, since it is smaller than the sum of its proper divisors (1402235952).

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

535481280 is a wasteful number, since it uses less digits than its factorization.

535481280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 535481280 is about 23140.4684481538. The cubic root of 535481280 is about 812.0474949368.

The spelling of 535481280 in words is "five hundred thirty-five million, four hundred eighty-one thousand, two hundred eighty".