65290368 has 256 divisors, whose sum is σ = 215913600. Its totient is φ = 17203200.

The previous prime is 65290367. The next prime is 65290369. The reversal of 65290368 is 86309256.

It is an interprime number because it is at equal distance from previous prime (65290367) and next prime (65290369).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65290367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1592428 + ... + 1592468.

Almost surely, 2^65290368 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 65290368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107956800).

65290368 is an abundant number, since it is smaller than the sum of its proper divisors (150623232).

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

65290368 is a wasteful number, since it uses less digits than its factorization.

65290368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 65290368 is about 8080.2455408236. The cubic root of 65290368 is about 402.6703994118.

The spelling of 65290368 in words is "sixty-five million, two hundred ninety thousand, three hundred sixty-eight".