1081842 has 8 divisors (see below), whose sum is σ = 2163696. Its totient is φ = 360612.

The previous prime is 1081823. The next prime is 1081853. The reversal of 1081842 is 2481801.

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

1081842 is an admirable number.

It is a super-2 number, since 2×1081842² = 2340764225928, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90148 + ... + 90159.

It is an arithmetic number, because the mean of its divisors is an integer number (270462).

2^1081842 is an apocalyptic number.

1081842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1081842 is a wasteful number, since it uses less digits than its factorization.

1081842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180312.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1081842 is about 1040.1163396467. The cubic root of 1081842 is about 102.6568528503.

The spelling of 1081842 in words is "one million, eighty-one thousand, eight hundred forty-two".