1018242 has 12 divisors (see below), whose sum is σ = 2206230. Its totient is φ = 339408.

The previous prime is 1018223. The next prime is 1018247. The reversal of 1018242 is 2428101.

It can be written as a sum of positive squares in only one way, i.e., 594441 + 423801 = 771^2 + 651^2 .

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: 56569 = 1018242 / (1 + 0 + 1 + 8 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (1018247) 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, 28267 + ... + 28302.

2^1018242 is an apocalyptic number.

1018242 is an abundant number, since it is smaller than the sum of its proper divisors (1187988).

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

1018242 is a wasteful number, since it uses less digits than its factorization.

1018242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56577 (or 56574 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1018242 is about 1009.0797788084. The cubic root of 1018242 is about 100.6044062379.

The spelling of 1018242 in words is "one million, eighteen thousand, two hundred forty-two".