65949408 has 72 divisors (see below), whose sum is σ = 214342128. Its totient is φ = 18842112.

The previous prime is 65949391. The next prime is 65949419. The reversal of 65949408 is 80494956.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

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, 14341 + ... + 18372.

It is an arithmetic number, because the mean of its divisors is an integer number (2976974).

Almost surely, 2^65949408 is an apocalyptic number.

It is an amenable number.

65949408 is an abundant number, since it is smaller than the sum of its proper divisors (148392720).

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

65949408 is a wasteful number, since it uses less digits than its factorization.

65949408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32736 (or 32725 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 65949408 is about 8120.9240853489. The cubic root of 65949408 is about 404.0207158609.

The spelling of 65949408 in words is "sixty-five million, nine hundred forty-nine thousand, four hundred eight".