638011059 has 8 divisors (see below), whose sum is σ = 972207360. Its totient is φ = 364577736.

The previous prime is 638010949. The next prime is 638011061. The reversal of 638011059 is 950110836.

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

It is not a de Polignac number, because 638011059 - 2⁷ = 638010931 is a prime.

It is a super-2 number, since 2×638011059² = 814116222812602962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (638011069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15190719 + ... + 15190760.

It is an arithmetic number, because the mean of its divisors is an integer number (121525920).

Almost surely, 2^638011059 is an apocalyptic number.

638011059 is a deficient number, since it is larger than the sum of its proper divisors (334196301).

638011059 is a wasteful number, since it uses less digits than its factorization.

638011059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30381489.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 638011059 is about 25258.8807946829. The cubic root of 638011059 is about 860.8802322477.

The spelling of 638011059 in words is "six hundred thirty-eight million, eleven thousand, fifty-nine".