1834040 has 32 divisors (see below), whose sum is σ = 4445280. Its totient is φ = 676992.

The previous prime is 1834039. The next prime is 1834067. The reversal of 1834040 is 404381.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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, 1244 + ... + 2283.

It is an arithmetic number, because the mean of its divisors is an integer number (138915).

2^1834040 is an apocalyptic number.

1834040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1834040 is an abundant number, since it is smaller than the sum of its proper divisors (2611240).

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

1834040 is a wasteful number, since it uses less digits than its factorization.

1834040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1834040 is about 1354.2673295919. The cubic root of 1834040 is about 122.4060643186.

The spelling of 1834040 in words is "one million, eight hundred thirty-four thousand, forty".