531361420 has 12 divisors (see below), whose sum is σ = 1115859024. Its totient is φ = 212544560.

The previous prime is 531361409. The next prime is 531361451. The reversal of 531361420 is 24163135.

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, 13284016 + ... + 13284055.

It is an arithmetic number, because the mean of its divisors is an integer number (92988252).

Almost surely, 2^531361420 is an apocalyptic number.

It is an amenable number.

531361420 is an abundant number, since it is smaller than the sum of its proper divisors (584497604).

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

531361420 is a wasteful number, since it uses less digits than its factorization.

531361420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26568080 (or 26568078 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 531361420 is about 23051.2780556740. The cubic root of 531361420 is about 809.9595671531.

The spelling of 531361420 in words is "five hundred thirty-one million, three hundred sixty-one thousand, four hundred twenty".