64493458 has 8 divisors (see below), whose sum is σ = 97389900. Its totient is φ = 32030160.

The previous prime is 64493441. The next prime is 64493483. The reversal of 64493458 is 85439446.

It is a happy number.

64493458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63154809 + 1338649 = 7947^2 + 1157^2 .

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

It is a super-2 number, since 2×64493458² = 8318812249595528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107913 + ... + 108508.

Almost surely, 2^64493458 is an apocalyptic number.

64493458 is a deficient number, since it is larger than the sum of its proper divisors (32896442).

64493458 is a wasteful number, since it uses less digits than its factorization.

64493458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216572.

The product of its digits is 414720, while the sum is 43.

The square root of 64493458 is about 8030.7819046466. The cubic root of 64493458 is about 401.0254066070.

The spelling of 64493458 in words is "sixty-four million, four hundred ninety-three thousand, four hundred fifty-eight".