1387684222 has 8 divisors (see below), whose sum is σ = 2082086496. Its totient is φ = 693655392.

The previous prime is 1387684201. The next prime is 1387684271. The reversal of 1387684222 is 2224867831.

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

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 3 ways as a sum of consecutive naturals, for example, 83878 + ... + 99049.

It is an arithmetic number, because the mean of its divisors is an integer number (260260812).

Almost surely, 2^1387684222 is an apocalyptic number.

1387684222 is a deficient number, since it is larger than the sum of its proper divisors (694402274).

1387684222 is a wasteful number, since it uses less digits than its factorization.

1387684222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186722.

The product of its digits is 258048, while the sum is 43.

The square root of 1387684222 is about 37251.6338165187. The cubic root of 1387684222 is about 1115.3989126780.

The spelling of 1387684222 in words is "one billion, three hundred eighty-seven million, six hundred eighty-four thousand, two hundred twenty-two".