104540042 has 8 divisors (see below), whose sum is σ = 157955076. Its totient is φ = 51888352.

The previous prime is 104540017. The next prime is 104540053. The reversal of 104540042 is 240045401.

It can be written as a sum of positive squares in 2 ways, for example, as 102434641 + 2105401 = 10121^2 + 1451^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 104539996 and 104540023.

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, 190493 + ... + 191040.

Almost surely, 2^104540042 is an apocalyptic number.

104540042 is a deficient number, since it is larger than the sum of its proper divisors (53415034).

104540042 is a wasteful number, since it uses less digits than its factorization.

104540042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381672.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 104540042 is about 10224.4824807909. The cubic root of 104540042 is about 471.0795195126.

Adding to 104540042 its reverse (240045401), we get a palindrome (344585443).

The spelling of 104540042 in words is "one hundred four million, five hundred forty thousand, forty-two".