1842540 has 96 divisors (see below), whose sum is σ = 6096384. Its totient is φ = 407040.

The previous prime is 1842539. The next prime is 1842551. The reversal of 1842540 is 452481.

It is a self number, because there is not a number n which added to its sum of digits gives 1842540.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 17167 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (63504).

2^1842540 is an apocalyptic number.

1842540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1842540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3048192).

1842540 is an abundant number, since it is smaller than the sum of its proper divisors (4253844).

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

1842540 is a wasteful number, since it uses less digits than its factorization.

1842540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1842540 is about 1357.4019301592. The cubic root of 1842540 is about 122.5948730544.

The spelling of 1842540 in words is "one million, eight hundred forty-two thousand, five hundred forty".