17390042 has 8 divisors (see below), whose sum is σ = 26577396. Its totient is φ = 8530912.

The previous prime is 17390041. The next prime is 17390069. The reversal of 17390042 is 24009371.

It can be written as a sum of positive squares in 2 ways, for example, as 14295961 + 3094081 = 3781^2 + 1759^2 .

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 = 17389993 and 17390020.

It is not an unprimeable number, because it can be changed into a prime (17390041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81923 + ... + 82134.

Almost surely, 2^17390042 is an apocalyptic number.

17390042 is a deficient number, since it is larger than the sum of its proper divisors (9187354).

17390042 is a wasteful number, since it uses less digits than its factorization.

17390042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164112.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 17390042 is about 4170.1369282075. The cubic root of 17390042 is about 259.0797943393.

The spelling of 17390042 in words is "seventeen million, three hundred ninety thousand, forty-two".