1842642 has 16 divisors (see below), whose sum is σ = 4094880. Its totient is φ = 614196.

The previous prime is 1842641. The next prime is 1842661. The reversal of 1842642 is 2462481.

1842642 is a `hidden beast` number, since 18 + 4 + 2 + 642 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1842641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17008 + ... + 17115.

It is an arithmetic number, because the mean of its divisors is an integer number (255930).

2^1842642 is an apocalyptic number.

1842642 is an abundant number, since it is smaller than the sum of its proper divisors (2252238).

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

1842642 is a wasteful number, since it uses less digits than its factorization.

1842642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34134 (or 34128 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1842642 is about 1357.4395014143. The cubic root of 1842642 is about 122.5971352298.

The spelling of 1842642 in words is "one million, eight hundred forty-two thousand, six hundred forty-two".