64043494 has 8 divisors (see below), whose sum is σ = 97016688. Its totient is φ = 31704600.

The previous prime is 64043429. The next prime is 64043501. The reversal of 64043494 is 49434046.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158322 + ... + 158725.

It is an arithmetic number, because the mean of its divisors is an integer number (12127086).

Almost surely, 2^64043494 is an apocalyptic number.

64043494 is a deficient number, since it is larger than the sum of its proper divisors (32973194).

64043494 is a wasteful number, since it uses less digits than its factorization.

64043494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317150.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 64043494 is about 8002.7179133092. The cubic root of 64043494 is about 400.0905919812.

The spelling of 64043494 in words is "sixty-four million, forty-three thousand, four hundred ninety-four".