1018642 has 8 divisors (see below), whose sum is σ = 1549116. Its totient is φ = 502272.

The previous prime is 1018621. The next prime is 1018643. The reversal of 1018642 is 2468101.

1018642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1002001 + 16641 = 1001^2 + 129^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1018643) 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, 3343 + ... + 3634.

2^1018642 is an apocalyptic number.

1018642 is a deficient number, since it is larger than the sum of its proper divisors (530474).

1018642 is an equidigital number, since it uses as much as digits as its factorization.

1018642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1018642 is about 1009.2779597316. The cubic root of 1018642 is about 100.6175781211.

The spelling of 1018642 in words is "one million, eighteen thousand, six hundred forty-two".