1820403114 has 32 divisors (see below), whose sum is σ = 3734522880. Its totient is φ = 591364800.

The previous prime is 1820403113. The next prime is 1820403121. The reversal of 1820403114 is 4113040281.

It is not an unprimeable number, because it can be changed into a prime (1820403113) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17079 + ... + 62709.

It is an arithmetic number, because the mean of its divisors is an integer number (116703840).

Almost surely, 2^1820403114 is an apocalyptic number.

1820403114 is an abundant number, since it is smaller than the sum of its proper divisors (1914119766).

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

1820403114 is a wasteful number, since it uses less digits than its factorization.

1820403114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45806.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1820403114 is about 42666.1823227717. The cubic root of 1820403114 is about 1221.0192847835.

Adding to 1820403114 its reverse (4113040281), we get a palindrome (5933443395).

The spelling of 1820403114 in words is "one billion, eight hundred twenty million, four hundred three thousand, one hundred fourteen".