531662040 has 192 divisors, whose sum is σ = 2126779200. Its totient is φ = 112167936.

The previous prime is 531662023. The next prime is 531662077. The reversal of 531662040 is 40266135.

531662040 is a `hidden beast` number, since 5 + 31 + 6 + 620 + 4 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 531661995 and 531662013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24646 + ... + 40874.

It is an arithmetic number, because the mean of its divisors is an integer number (11076975).

Almost surely, 2^531662040 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 531662040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063389600).

531662040 is an abundant number, since it is smaller than the sum of its proper divisors (1595117160).

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

531662040 is a wasteful number, since it uses less digits than its factorization.

531662040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16266 (or 16259 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 531662040 is about 23057.7978133212. The cubic root of 531662040 is about 810.1122843884.

The spelling of 531662040 in words is "five hundred thirty-one million, six hundred sixty-two thousand, forty".