65494432 has 72 divisors (see below), whose sum is σ = 139216644. Its totient is φ = 30311424.

The previous prime is 65494417. The next prime is 65494487. The reversal of 65494432 is 23449456.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64064016 + 1430416 = 8004^2 + 1196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65494391 and 65494400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897148 + ... + 897220.

Almost surely, 2^65494432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65494432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69608322).

65494432 is an abundant number, since it is smaller than the sum of its proper divisors (73722212).

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

65494432 is a wasteful number, since it uses less digits than its factorization.

65494432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 151 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 65494432 is about 8092.8630286197. The cubic root of 65494432 is about 403.0894764042.

The spelling of 65494432 in words is "sixty-five million, four hundred ninety-four thousand, four hundred thirty-two".