865449332 has 12 divisors (see below), whose sum is σ = 1652221536. Its totient is φ = 393386040.

The previous prime is 865449331. The next prime is 865449341. The reversal of 865449332 is 233944568.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 19669303 = 865449332 / (8 + 6 + 5 + 4 + 4 + 9 + 3 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865449331) 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 3 ways as a sum of consecutive naturals, for example, 9834608 + ... + 9834695.

It is an arithmetic number, because the mean of its divisors is an integer number (137685128).

Almost surely, 2^865449332 is an apocalyptic number.

It is an amenable number.

865449332 is a deficient number, since it is larger than the sum of its proper divisors (786772204).

865449332 is a wasteful number, since it uses less digits than its factorization.

865449332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19669318 (or 19669316 counting only the distinct ones).

The product of its digits is 622080, while the sum is 44.

The square root of 865449332 is about 29418.5202211124. The cubic root of 865449332 is about 952.9728964368.

The spelling of 865449332 in words is "eight hundred sixty-five million, four hundred forty-nine thousand, three hundred thirty-two".