531620336 has 20 divisors (see below), whose sum is σ = 1109246712. Its totient is φ = 245363136.

The previous prime is 531620317. The next prime is 531620351. The reversal of 531620336 is 633026135.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 531620299 and 531620308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277726 + ... + 1278141.

Almost surely, 2^531620336 is an apocalyptic number.

It is an amenable number.

531620336 is an abundant number, since it is smaller than the sum of its proper divisors (577626376).

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

531620336 is a wasteful number, since it uses less digits than its factorization.

531620336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555888 (or 2555882 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 531620336 is about 23056.8934594407. The cubic root of 531620336 is about 810.0911018805.

It can be divided in two parts, 5316 and 20336, that added together give a palindrome (25652).

The spelling of 531620336 in words is "five hundred thirty-one million, six hundred twenty thousand, three hundred thirty-six".