65404832 has 24 divisors (see below), whose sum is σ = 128999556. Its totient is φ = 32643072.

The previous prime is 65404819. The next prime is 65404837. The reversal of 65404832 is 23840456.

It can be written as a sum of positive squares in 2 ways, for example, as 64705936 + 698896 = 8044^2 + 836^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (65404837) 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, 20018 + ... + 23054.

Almost surely, 2^65404832 is an apocalyptic number.

It is an amenable number.

65404832 is a deficient number, since it is larger than the sum of its proper divisors (63594724).

65404832 is a wasteful number, since it uses less digits than its factorization.

65404832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720 (or 3712 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 65404832 is about 8087.3253922419. The cubic root of 65404832 is about 402.9055762952.

The spelling of 65404832 in words is "sixty-five million, four hundred four thousand, eight hundred thirty-two".