65244388 has 12 divisors (see below), whose sum is σ = 124557552. Its totient is φ = 29656520.

The previous prime is 65244359. The next prime is 65244397. The reversal of 65244388 is 88344256.

It is a self number, because there is not a number n which added to its sum of digits gives 65244388.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741370 + ... + 741457.

It is an arithmetic number, because the mean of its divisors is an integer number (10379796).

Almost surely, 2^65244388 is an apocalyptic number.

It is an amenable number.

65244388 is a deficient number, since it is larger than the sum of its proper divisors (59313164).

65244388 is a wasteful number, since it uses less digits than its factorization.

65244388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482842 (or 1482840 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 65244388 is about 8077.3998291529. The cubic root of 65244388 is about 402.5758518621.

The spelling of 65244388 in words is "sixty-five million, two hundred forty-four thousand, three hundred eighty-eight".