64270752 has 144 divisors (see below), whose sum is σ = 211552992. Its totient is φ = 16934400.

The previous prime is 64270751. The next prime is 64270769. The reversal of 64270752 is 25707246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64270751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60627 + ... + 61677.

It is an arithmetic number, because the mean of its divisors is an integer number (1469118).

Almost surely, 2^64270752 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 64270752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105776496).

64270752 is an abundant number, since it is smaller than the sum of its proper divisors (147282240).

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

64270752 is a wasteful number, since it uses less digits than its factorization.

64270752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 64270752 is about 8016.9041406269. The cubic root of 64270752 is about 400.5632731029.

Adding to 64270752 its reverse (25707246), we get a palindrome (89977998).

The spelling of 64270752 in words is "sixty-four million, two hundred seventy thousand, seven hundred fifty-two".