65240444 has 6 divisors (see below), whose sum is σ = 114170784. Its totient is φ = 32620220.

The previous prime is 65240429. The next prime is 65240449. The reversal of 65240444 is 44404256.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65240449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8155052 + ... + 8155059.

It is an arithmetic number, because the mean of its divisors is an integer number (19028464).

Almost surely, 2^65240444 is an apocalyptic number.

It is an amenable number.

65240444 is a deficient number, since it is larger than the sum of its proper divisors (48930340).

65240444 is a wasteful number, since it uses less digits than its factorization.

65240444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16310115 (or 16310113 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 65240444 is about 8077.1556874930. The cubic root of 65240444 is about 402.5677398431.

The spelling of 65240444 in words is "sixty-five million, two hundred forty thousand, four hundred forty-four".