1984638214 has 16 divisors (see below), whose sum is σ = 3345344352. Its totient is φ = 876161088.

The previous prime is 1984638167. The next prime is 1984638241. The reversal of 1984638214 is 4128364891.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1658799 + ... + 1659994.

It is an arithmetic number, because the mean of its divisors is an integer number (209084022).

Almost surely, 2^1984638214 is an apocalyptic number.

1984638214 is a deficient number, since it is larger than the sum of its proper divisors (1360706138).

1984638214 is a wasteful number, since it uses less digits than its factorization.

1984638214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318831.

The product of its digits is 331776, while the sum is 46.

The square root of 1984638214 is about 44549.2784902292. The cubic root of 1984638214 is about 1256.6869826080.

The spelling of 1984638214 in words is "one billion, nine hundred eighty-four million, six hundred thirty-eight thousand, two hundred fourteen".