65442432 has 64 divisors (see below), whose sum is σ = 189646560. Its totient is φ = 19829760.

The previous prime is 65442427. The next prime is 65442463. The reversal of 65442432 is 23424456.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 65442432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3523 + ... + 11970.

Almost surely, 2^65442432 is an apocalyptic number.

It is an amenable number.

65442432 is an abundant number, since it is smaller than the sum of its proper divisors (124204128).

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

65442432 is a wasteful number, since it uses less digits than its factorization.

65442432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15521 (or 15509 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 65442432 is about 8089.6496833917. The cubic root of 65442432 is about 402.9827691016.

Adding to 65442432 its reverse (23424456), we get a palindrome (88866888).

It can be divided in two parts, 654424 and 32, that added together give a palindrome (654456).

The spelling of 65442432 in words is "sixty-five million, four hundred forty-two thousand, four hundred thirty-two".