65046438 has 48 divisors (see below), whose sum is σ = 149610240. Its totient is φ = 20380272.

The previous prime is 65046433. The next prime is 65046439. The reversal of 65046438 is 83464056.

65046438 is a `hidden beast` number, since 6 + 5 + 0 + 4 + 643 + 8 = 666.

65046438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65046433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23095 + ... + 25757.

It is an arithmetic number, because the mean of its divisors is an integer number (3116880).

Almost surely, 2^65046438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65046438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74805120).

65046438 is an abundant number, since it is smaller than the sum of its proper divisors (84563802).

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

65046438 is a wasteful number, since it uses less digits than its factorization.

65046438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753 (or 2750 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 65046438 is about 8065.1371966012. The cubic root of 65046438 is about 402.1683040720.

The spelling of 65046438 in words is "sixty-five million, forty-six thousand, four hundred thirty-eight".