531426140 has 48 divisors (see below), whose sum is σ = 1288604352. Its totient is φ = 180320256.

The previous prime is 531426101. The next prime is 531426169. The reversal of 531426140 is 41624135.

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 15 ways as a sum of consecutive naturals, for example, 5987 + ... + 33146.

It is an arithmetic number, because the mean of its divisors is an integer number (26845924).

Almost surely, 2^531426140 is an apocalyptic number.

It is an amenable number.

531426140 is an abundant number, since it is smaller than the sum of its proper divisors (757178212).

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

531426140 is a wasteful number, since it uses less digits than its factorization.

531426140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39246 (or 39244 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 531426140 is about 23052.6818396472. The cubic root of 531426140 is about 809.9924502675.

The spelling of 531426140 in words is "five hundred thirty-one million, four hundred twenty-six thousand, one hundred forty".