531234720 has 96 divisors (see below), whose sum is σ = 1859336640. Its totient is φ = 141661440.

The previous prime is 531234719. The next prime is 531234721. The reversal of 531234720 is 27432135.

531234720 is a `hidden beast` number, since 5 + 312 + 347 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (531234719) and next prime (531234721).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (531234721) by changing a digit.

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, 57166 + ... + 65805.

It is an arithmetic number, because the mean of its divisors is an integer number (19368090).

Almost surely, 2^531234720 is an apocalyptic number.

It is an amenable number.

531234720 is an abundant number, since it is smaller than the sum of its proper divisors (1328101920).

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

531234720 is a wasteful number, since it uses less digits than its factorization.

531234720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122995 (or 122981 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 531234720 is about 23048.5296711092. The cubic root of 531234720 is about 809.8951853401.

Adding to 531234720 its reverse (27432135), we get a palindrome (558666855).

The spelling of 531234720 in words is "five hundred thirty-one million, two hundred thirty-four thousand, seven hundred twenty".