64419469 has 16 divisors (see below), whose sum is σ = 68728320. Its totient is φ = 60278400.

The previous prime is 64419431. The next prime is 64419473. The reversal of 64419469 is 96491446.

It is a cyclic number.

It is not a de Polignac number, because 64419469 - 2¹¹ = 64417421 is a prime.

It is a super-2 number, since 2×64419469² = 8299735972483922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64419419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205657 + ... + 205969.

It is an arithmetic number, because the mean of its divisors is an integer number (4295520).

Almost surely, 2^64419469 is an apocalyptic number.

It is an amenable number.

64419469 is a deficient number, since it is larger than the sum of its proper divisors (4308851).

64419469 is a wasteful number, since it uses less digits than its factorization.

64419469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its digits is 186624, while the sum is 43.

The square root of 64419469 is about 8026.1739951237. The cubic root of 64419469 is about 400.8719914460.

The spelling of 64419469 in words is "sixty-four million, four hundred nineteen thousand, four hundred sixty-nine".