531675420 has 96 divisors (see below), whose sum is σ = 1545578496. Its totient is φ = 136416000.

The previous prime is 531675377. The next prime is 531675433. The reversal of 531675420 is 24576135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365695 + ... + 367145.

It is an arithmetic number, because the mean of its divisors is an integer number (16099776).

Almost surely, 2^531675420 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 531675420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772789248).

531675420 is an abundant number, since it is smaller than the sum of its proper divisors (1013903076).

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

531675420 is a wasteful number, since it uses less digits than its factorization.

531675420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 531675420 is about 23058.0879519530. The cubic root of 531675420 is about 810.1190801914.

The spelling of 531675420 in words is "five hundred thirty-one million, six hundred seventy-five thousand, four hundred twenty".