1842940 has 24 divisors (see below), whose sum is σ = 4222512. Its totient is φ = 670080.

The previous prime is 1842931. The next prime is 1842941. The reversal of 1842940 is 492481.

It is a junction number, because it is equal to n+sod(n) for n = 1842899 and 1842908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1842941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3969 + ... + 4408.

It is an arithmetic number, because the mean of its divisors is an integer number (175938).

2^1842940 is an apocalyptic number.

1842940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1842940 is an abundant number, since it is smaller than the sum of its proper divisors (2379572).

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

1842940 is a wasteful number, since it uses less digits than its factorization.

1842940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397 (or 8395 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1842940 is about 1357.5492624579. The cubic root of 1842940 is about 122.6037438525.

The spelling of 1842940 in words is "one million, eight hundred forty-two thousand, nine hundred forty".