65098240 has 80 divisors (see below), whose sum is σ = 159096960. Its totient is φ = 25538560.

The previous prime is 65098217. The next prime is 65098277. The reversal of 65098240 is 4289056.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 65098196 and 65098205.

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, 150825 + ... + 151255.

It is an arithmetic number, because the mean of its divisors is an integer number (1988712).

Almost surely, 2^65098240 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 65098240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79548480).

65098240 is an abundant number, since it is smaller than the sum of its proper divisors (93998720).

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

65098240 is an equidigital number, since it uses as much as digits as its factorization.

65098240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 65098240 is about 8068.3480341393. The cubic root of 65098240 is about 402.2750359966.

The spelling of 65098240 in words is "sixty-five million, ninety-eight thousand, two hundred forty".