1820144414 has 16 divisors (see below), whose sum is σ = 2987268336. Its totient is φ = 824880000.

The previous prime is 1820144411. The next prime is 1820144467. The reversal of 1820144414 is 4144410281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820144411) 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, 115337 + ... + 130164.

It is an arithmetic number, because the mean of its divisors is an integer number (186704271).

Almost surely, 2^1820144414 is an apocalyptic number.

1820144414 is a deficient number, since it is larger than the sum of its proper divisors (1167123922).

1820144414 is a wasteful number, since it uses less digits than its factorization.

1820144414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245851.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 1820144414 is about 42663.1505400152. The cubic root of 1820144414 is about 1220.9614417979.

Adding to 1820144414 its reverse (4144410281), we get a palindrome (5964554695).

The spelling of 1820144414 in words is "one billion, eight hundred twenty million, one hundred forty-four thousand, four hundred fourteen".