1820423662 has 16 divisors (see below), whose sum is σ = 2801969280. Its totient is φ = 886552632.

The previous prime is 1820423639. The next prime is 1820423681. The reversal of 1820423662 is 2663240281.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1393 + ... + 60355.

It is an arithmetic number, because the mean of its divisors is an integer number (175123080).

Almost surely, 2^1820423662 is an apocalyptic number.

1820423662 is a deficient number, since it is larger than the sum of its proper divisors (981545618).

1820423662 is a wasteful number, since it uses less digits than its factorization.

1820423662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59367.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1820423662 is about 42666.4231217007. The cubic root of 1820423662 is about 1221.0238788959.

The spelling of 1820423662 in words is "one billion, eight hundred twenty million, four hundred twenty-three thousand, six hundred sixty-two".