65440614 has 8 divisors (see below), whose sum is σ = 130881240. Its totient is φ = 21813536.

The previous prime is 65440607. The next prime is 65440619. The reversal of 65440614 is 41604456.

It is a sphenic number, since it is the product of 3 distinct primes.

65440614 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65440619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5453379 + ... + 5453390.

It is an arithmetic number, because the mean of its divisors is an integer number (16360155).

Almost surely, 2^65440614 is an apocalyptic number.

65440614 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65440614 is a wasteful number, since it uses less digits than its factorization.

65440614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10906774.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 65440614 is about 8089.5373168062. The cubic root of 65440614 is about 402.9790374276.

The spelling of 65440614 in words is "sixty-five million, four hundred forty thousand, six hundred fourteen".