104639478 has 32 divisors (see below), whose sum is σ = 216545280. Its totient is φ = 33683040.

The previous prime is 104639449. The next prime is 104639497. The reversal of 104639478 is 874936401.

It is a super-2 number, since 2×104639478² = 21898840712224968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 29163 + ... + 32553.

It is an arithmetic number, because the mean of its divisors is an integer number (6767040).

Almost surely, 2^104639478 is an apocalyptic number.

104639478 is an abundant number, since it is smaller than the sum of its proper divisors (111905802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104639478 is a wasteful number, since it uses less digits than its factorization.

104639478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 104639478 is about 10229.3439672347. The cubic root of 104639478 is about 471.2288320577.

The spelling of 104639478 in words is "one hundred four million, six hundred thirty-nine thousand, four hundred seventy-eight".