104042409 has 32 divisors (see below), whose sum is σ = 150764544. Its totient is φ = 63645120.

The previous prime is 104042399. The next prime is 104042437. The reversal of 104042409 is 904240401.

It is not a de Polignac number, because 104042409 - 2¹¹ = 104040361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104047409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211654 + ... + 212144.

It is an arithmetic number, because the mean of its divisors is an integer number (4711392).

Almost surely, 2^104042409 is an apocalyptic number.

It is an amenable number.

104042409 is a deficient number, since it is larger than the sum of its proper divisors (46722135).

104042409 is a wasteful number, since it uses less digits than its factorization.

104042409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 104042409 is about 10200.1180875517. The cubic root of 104042409 is about 470.3308504939.

The spelling of 104042409 in words is "one hundred four million, forty-two thousand, four hundred nine".