65722384 has 40 divisors (see below), whose sum is σ = 156726080. Its totient is φ = 25999488.

The previous prime is 65722379. The next prime is 65722399. The reversal of 65722384 is 48322756.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21114 + ... + 24025.

It is an arithmetic number, because the mean of its divisors is an integer number (3918152).

Almost surely, 2^65722384 is an apocalyptic number.

It is an amenable number.

65722384 is an abundant number, since it is smaller than the sum of its proper divisors (91003696).

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

65722384 is a wasteful number, since it uses less digits than its factorization.

65722384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45167 (or 45161 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 65722384 is about 8106.9343157571. The cubic root of 65722384 is about 403.5565830668.

The spelling of 65722384 in words is "sixty-five million, seven hundred twenty-two thousand, three hundred eighty-four".