64752438 has 16 divisors (see below), whose sum is σ = 130185216. Its totient is φ = 21470760.

The previous prime is 64752433. The next prime is 64752449. The reversal of 64752438 is 83425746.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64752396 and 64752405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64752433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27106 + ... + 29397.

It is an arithmetic number, because the mean of its divisors is an integer number (8136576).

Almost surely, 2^64752438 is an apocalyptic number.

64752438 is an abundant number, since it is smaller than the sum of its proper divisors (65432778).

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

64752438 is a wasteful number, since it uses less digits than its factorization.

64752438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56699.

The product of its digits is 161280, while the sum is 39.

The square root of 64752438 is about 8046.8899582385. The cubic root of 64752438 is about 401.5614757189.

The spelling of 64752438 in words is "sixty-four million, seven hundred fifty-two thousand, four hundred thirty-eight".