536646420 has 36 divisors (see below), whose sum is σ = 1627828020. Its totient is φ = 143105664.

The previous prime is 536646413. The next prime is 536646427. The reversal of 536646420 is 24646635.

536646420 is a `hidden beast` number, since 5 + 3 + 6 + 6 + 4 + 642 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (536646413) and next prime (536646427).

It can be written as a sum of positive squares in 2 ways, for example, as 99920016 + 436726404 = 9996^2 + 20898^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 (536646427) 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 11 ways as a sum of consecutive naturals, for example, 1490505 + ... + 1490864.

It is an arithmetic number, because the mean of its divisors is an integer number (45217445).

Almost surely, 2^536646420 is an apocalyptic number.

It is an amenable number.

536646420 is an abundant number, since it is smaller than the sum of its proper divisors (1091181600).

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

536646420 is a wasteful number, since it uses less digits than its factorization.

536646420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981384 (or 2981379 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 536646420 is about 23165.6301446777. The cubic root of 536646420 is about 812.6360393909.

The spelling of 536646420 in words is "five hundred thirty-six million, six hundred forty-six thousand, four hundred twenty".