731538468 has 36 divisors (see below), whose sum is σ = 1849988140. Its totient is φ = 243737856.

The previous prime is 731538461. The next prime is 731538473. The reversal of 731538468 is 864835137.

731538468 is a `hidden beast` number, since 73 + 1 + 538 + 46 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 157552704 + 573985764 = 12552^2 + 23958^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (731538461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152328 + ... + 157056.

Almost surely, 2^731538468 is an apocalyptic number.

It is an amenable number.

731538468 is an abundant number, since it is smaller than the sum of its proper divisors (1118449672).

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

731538468 is a wasteful number, since it uses less digits than its factorization.

731538468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9036 (or 9031 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 731538468 is about 27046.9678152654. The cubic root of 731538468 is about 901.0434268589.

The spelling of 731538468 in words is "seven hundred thirty-one million, five hundred thirty-eight thousand, four hundred sixty-eight".