1080642 has 16 divisors (see below), whose sum is σ = 2171520. Its totient is φ = 358512.

The previous prime is 1080613. The next prime is 1080647. The reversal of 1080642 is 2460801.

It is not an unprimeable number, because it can be changed into a prime (1080647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103 + ... + 2565.

It is an arithmetic number, because the mean of its divisors is an integer number (135720).

2^1080642 is an apocalyptic number.

1080642 is an abundant number, since it is smaller than the sum of its proper divisors (1090878).

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

1080642 is a wasteful number, since it uses less digits than its factorization.

1080642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1080642 is about 1039.5393210456. The cubic root of 1080642 is about 102.6188824877.

The spelling of 1080642 in words is "one million, eighty thousand, six hundred forty-two".