65041992 has 96 divisors (see below), whose sum is σ = 181927200. Its totient is φ = 20984832.

The previous prime is 65041987. The next prime is 65041993. The reversal of 65041992 is 29914056.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65041993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467859 + ... + 467997.

It is an arithmetic number, because the mean of its divisors is an integer number (1895075).

Almost surely, 2^65041992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65041992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90963600).

65041992 is an abundant number, since it is smaller than the sum of its proper divisors (116885208).

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

65041992 is a wasteful number, since it uses less digits than its factorization.

65041992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 65041992 is about 8064.8615611181. The cubic root of 65041992 is about 402.1591409722.

The spelling of 65041992 in words is "sixty-five million, forty-one thousand, nine hundred ninety-two".