20170342 has 8 divisors (see below), whose sum is σ = 30279600. Its totient is φ = 10077144.

The previous prime is 20170331. The next prime is 20170363. The reversal of 20170342 is 24307102.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117 + ... + 6352.

It is an arithmetic number, because the mean of its divisors is an integer number (3784950).

Almost surely, 2^20170342 is an apocalyptic number.

20170342 is a deficient number, since it is larger than the sum of its proper divisors (10109258).

20170342 is a wasteful number, since it uses less digits than its factorization.

20170342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20170342 is about 4491.1403897006. The cubic root of 20170342 is about 272.2102163123.

Adding to 20170342 its reverse (24307102), we get a palindrome (44477444).

It can be divided in two parts, 2017034 and 2, that added together give a triangular number (2017036 = T₂₀₀₈).

The spelling of 20170342 in words is "twenty million, one hundred seventy thousand, three hundred forty-two".