65238834 has 8 divisors (see below), whose sum is σ = 130477680. Its totient is φ = 21746276.

The previous prime is 65238827. The next prime is 65238839. The reversal of 65238834 is 43883256.

It is a sphenic number, since it is the product of 3 distinct primes.

65238834 is an admirable number.

It is a super-2 number, since 2×65238834² = 8512210923359112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65238792 and 65238801.

It is not an unprimeable number, because it can be changed into a prime (65238839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5436564 + ... + 5436575.

It is an arithmetic number, because the mean of its divisors is an integer number (16309710).

Almost surely, 2^65238834 is an apocalyptic number.

65238834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65238834 is a wasteful number, since it uses less digits than its factorization.

65238834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10873144.

The product of its digits is 138240, while the sum is 39.

The square root of 65238834 is about 8077.0560230817. The cubic root of 65238834 is about 402.5644283012.

The spelling of 65238834 in words is "sixty-five million, two hundred thirty-eight thousand, eight hundred thirty-four".