731630532 has 24 divisors (see below), whose sum is σ = 1708697536. Its totient is φ = 243654048.

The previous prime is 731630521. The next prime is 731630569. The reversal of 731630532 is 235036137.

It is a self number, because there is not a number n which added to its sum of digits gives 731630532.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13888 + ... + 40695.

Almost surely, 2^731630532 is an apocalyptic number.

It is an amenable number.

731630532 is an abundant number, since it is smaller than the sum of its proper divisors (977067004).

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

731630532 is a wasteful number, since it uses less digits than its factorization.

731630532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55707 (or 55705 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 731630532 is about 27048.6696900236. The cubic root of 731630532 is about 901.0812239974.

Adding to 731630532 its reverse (235036137), we get a palindrome (966666669).

The spelling of 731630532 in words is "seven hundred thirty-one million, six hundred thirty thousand, five hundred thirty-two".