1820446966 has 16 divisors (see below), whose sum is σ = 2943057600. Its totient is φ = 839539008.

The previous prime is 1820446963. The next prime is 1820446993. The reversal of 1820446966 is 6696440281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820446963) 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, 6355 + ... + 60673.

It is an arithmetic number, because the mean of its divisors is an integer number (183941100).

Almost surely, 2^1820446966 is an apocalyptic number.

1820446966 is a deficient number, since it is larger than the sum of its proper divisors (1122610634).

1820446966 is a wasteful number, since it uses less digits than its factorization.

1820446966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55623.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 1820446966 is about 42666.6962161356. The cubic root of 1820446966 is about 1221.0290891518.

The spelling of 1820446966 in words is "one billion, eight hundred twenty million, four hundred forty-six thousand, nine hundred sixty-six".