1839728222 has 8 divisors (see below), whose sum is σ = 2762830056. Its totient is φ = 918784872.

The previous prime is 1839728213. The next prime is 1839728227. The reversal of 1839728222 is 2228279381.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1839728227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537488 + ... + 540899.

It is an arithmetic number, because the mean of its divisors is an integer number (345353757).

Almost surely, 2^1839728222 is an apocalyptic number.

1839728222 is a deficient number, since it is larger than the sum of its proper divisors (923101834).

1839728222 is a wasteful number, since it uses less digits than its factorization.

1839728222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079242.

The product of its digits is 193536, while the sum is 44.

The square root of 1839728222 is about 42892.0531334185. The cubic root of 1839728222 is about 1225.3248000603.

The spelling of 1839728222 in words is "one billion, eight hundred thirty-nine million, seven hundred twenty-eight thousand, two hundred twenty-two".