1828840205 has 8 divisors (see below), whose sum is σ = 2197266912. Its totient is φ = 1461299728.

The previous prime is 1828840201. The next prime is 1828840243. The reversal of 1828840205 is 5020488281.

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

It is a cyclic number.

It is not a de Polignac number, because 1828840205 - 2² = 1828840201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828840201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217007 + ... + 225276.

It is an arithmetic number, because the mean of its divisors is an integer number (274658364).

Almost surely, 2^1828840205 is an apocalyptic number.

It is an amenable number.

1828840205 is a deficient number, since it is larger than the sum of its proper divisors (368426707).

1828840205 is an equidigital number, since it uses as much as digits as its factorization.

1828840205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443115.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 1828840205 is about 42764.9413071034. The cubic root of 1828840205 is about 1222.9027460407.

The spelling of 1828840205 in words is "one billion, eight hundred twenty-eight million, eight hundred forty thousand, two hundred five".