64044250 has 64 divisors (see below), whose sum is σ = 128419200. Its totient is φ = 23846400.

The previous prime is 64044241. The next prime is 64044251. The reversal of 64044250 is 5244046.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (64044251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460681 + ... + 460819.

It is an arithmetic number, because the mean of its divisors is an integer number (2006550).

Almost surely, 2^64044250 is an apocalyptic number.

64044250 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

64044250 is a wasteful number, since it uses less digits than its factorization.

64044250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 64044250 is about 8002.7651471226. The cubic root of 64044250 is about 400.0921662618.

Adding to 64044250 its reverse (5244046), we get a palindrome (69288296).

The spelling of 64044250 in words is "sixty-four million, forty-four thousand, two hundred fifty".