64044453 has 12 divisors (see below), whose sum is σ = 93861824. Its totient is φ = 38814600.

The previous prime is 64044451. The next prime is 64044469. The reversal of 64044453 is 35444046.

It is not a de Polignac number, because 64044453 - 2¹ = 64044451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64044453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64044451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87853 + ... + 88578.

Almost surely, 2^64044453 is an apocalyptic number.

It is an amenable number.

64044453 is a deficient number, since it is larger than the sum of its proper divisors (29817371).

64044453 is a wasteful number, since it uses less digits than its factorization.

64044453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176456 (or 176445 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 64044453 is about 8002.7778302287. Note that the first 3 decimals coincide. The cubic root of 64044453 is about 400.0925889832.

Adding to 64044453 its reverse (35444046), we get a palindrome (99488499).

The spelling of 64044453 in words is "sixty-four million, forty-four thousand, four hundred fifty-three".