531782426 has 32 divisors (see below), whose sum is σ = 940563840. Its totient is φ = 220729536.

The previous prime is 531782413. The next prime is 531782429. The reversal of 531782426 is 624287135.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 531782426.

It is not an unprimeable number, because it can be changed into a prime (531782429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116381 + ... + 120863.

It is an arithmetic number, because the mean of its divisors is an integer number (29392620).

Almost surely, 2^531782426 is an apocalyptic number.

531782426 is a deficient number, since it is larger than the sum of its proper divisors (408781414).

531782426 is a wasteful number, since it uses less digits than its factorization.

531782426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758.

The product of its digits is 80640, while the sum is 38.

The square root of 531782426 is about 23060.4081923976. The cubic root of 531782426 is about 810.1734252448.

The spelling of 531782426 in words is "five hundred thirty-one million, seven hundred eighty-two thousand, four hundred twenty-six".