2017242 has 12 divisors (see below), whose sum is σ = 4370730. Its totient is φ = 672408.

The previous prime is 2017217. The next prime is 2017243. The reversal of 2017242 is 2427102.

It can be written as a sum of positive squares in only one way, i.e., 1766241 + 251001 = 1329^2 + 501^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 112069 = 2017242 / (2 + 0 + 1 + 7 + 2 + 4 + 2).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2017243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56017 + ... + 56052.

2^2017242 is an apocalyptic number.

2017242 is an abundant number, since it is smaller than the sum of its proper divisors (2353488).

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

2017242 is a wasteful number, since it uses less digits than its factorization.

2017242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112077 (or 112074 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2017242 is about 1420.2964479291. The cubic root of 2017242 is about 126.3531288187.

The spelling of 2017242 in words is "two million, seventeen thousand, two hundred forty-two".