65802240 has 416 divisors, whose sum is σ = 283080960. Its totient is φ = 14155776.

The previous prime is 65802211. The next prime is 65802251. The reversal of 65802240 is 4220856.

65802240 is a `hidden beast` number, since 658 + 0 + 2 + 2 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3870712 + ... + 3870728.

Almost surely, 2^65802240 is an apocalyptic number.

65802240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65802240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141540480).

65802240 is an abundant number, since it is smaller than the sum of its proper divisors (217278720).

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

65802240 is a wasteful number, since it uses less digits than its factorization.

65802240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 65802240 is about 8111.8579869226. The cubic root of 65802240 is about 403.7199640901.

The spelling of 65802240 in words is "sixty-five million, eight hundred two thousand, two hundred forty".