64004434 has 8 divisors (see below), whose sum is σ = 103391820. Its totient is φ = 29540496.

The previous prime is 64004419. The next prime is 64004453. The reversal of 64004434 is 43440046.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55577025 + 8427409 = 7455^2 + 2903^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 64004399 and 64004408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230829 + ... + 1230880.

Almost surely, 2^64004434 is an apocalyptic number.

64004434 is a deficient number, since it is larger than the sum of its proper divisors (39387386).

64004434 is a wasteful number, since it uses less digits than its factorization.

64004434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461724.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 64004434 is about 8000.2771202003. The cubic root of 64004434 is about 400.0092372867.

The spelling of 64004434 in words is "sixty-four million, four thousand, four hundred thirty-four".