1841040 has 60 divisors (see below), whose sum is σ = 6185244. Its totient is φ = 490752.

The previous prime is 1841039. The next prime is 1841057. The reversal of 1841040 is 401481.

It can be written as a sum of positive squares in 2 ways, for example, as 725904 + 1115136 = 852^2 + 1056^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559 + ... + 1998.

2^1841040 is an apocalyptic number.

1841040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1841040 is an abundant number, since it is smaller than the sum of its proper divisors (4344204).

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

1841040 is a wasteful number, since it uses less digits than its factorization.

1841040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576 (or 2567 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1841040 is about 1356.8492915575. The cubic root of 1841040 is about 122.5615961225.

It can be divided in two parts, 18 and 41040, that multiplied together give a triangular number (738720 = T₁₂₁₅).

The spelling of 1841040 in words is "one million, eight hundred forty-one thousand, forty".