1829140 has 12 divisors (see below), whose sum is σ = 3841236. Its totient is φ = 731648.

The previous prime is 1829137. The next prime is 1829141. The reversal of 1829140 is 419281.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 492804 + 1336336 = 702^2 + 1156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1829141) 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 3 ways as a sum of consecutive naturals, for example, 45709 + ... + 45748.

It is an arithmetic number, because the mean of its divisors is an integer number (320103).

2^1829140 is an apocalyptic number.

1829140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1829140 is an abundant number, since it is smaller than the sum of its proper divisors (2012096).

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

1829140 is a wasteful number, since it uses less digits than its factorization.

1829140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91466 (or 91464 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1829140 is about 1352.4570233468. The cubic root of 1829140 is about 122.2969564362.

The spelling of 1829140 in words is "one million, eight hundred twenty-nine thousand, one hundred forty".