64252782 has 48 divisors (see below), whose sum is σ = 152755200. Its totient is φ = 19357200.

The previous prime is 64252763. The next prime is 64252841. The reversal of 64252782 is 28725246.

64252782 is a `hidden beast` number, since 642 + 5 + 2 + 7 + 8 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36969 + ... + 38667.

It is an arithmetic number, because the mean of its divisors is an integer number (3182400).

Almost surely, 2^64252782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64252782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76377600).

64252782 is an abundant number, since it is smaller than the sum of its proper divisors (88502418).

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

64252782 is a wasteful number, since it uses less digits than its factorization.

64252782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909 (or 1906 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 64252782 is about 8015.7833054543. The cubic root of 64252782 is about 400.5259373384.

The spelling of 64252782 in words is "sixty-four million, two hundred fifty-two thousand, seven hundred eighty-two".