1828390 has 8 divisors (see below), whose sum is σ = 3291120. Its totient is φ = 731352.

The previous prime is 1828381. The next prime is 1828397. The reversal of 1828390 is 938281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91410 + ... + 91429.

It is an arithmetic number, because the mean of its divisors is an integer number (411390).

2^1828390 is an apocalyptic number.

1828390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1828390 is a deficient number, since it is larger than the sum of its proper divisors (1462730).

1828390 is a wasteful number, since it uses less digits than its factorization.

1828390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182846.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1828390 is about 1352.1797217826. The cubic root of 1828390 is about 122.2802390615.

The spelling of 1828390 in words is "one million, eight hundred twenty-eight thousand, three hundred ninety".