1984520338 has 8 divisors (see below), whose sum is σ = 2978870832. Its totient is φ = 991563396.

The previous prime is 1984520299. The next prime is 1984520353. The reversal of 1984520338 is 8330254891.

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

It is a junction number, because it is equal to n+sod(n) for n = 1984520294 and 1984520303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344820 + ... + 350527.

It is an arithmetic number, because the mean of its divisors is an integer number (372358854).

Almost surely, 2^1984520338 is an apocalyptic number.

1984520338 is a deficient number, since it is larger than the sum of its proper divisors (994350494).

1984520338 is a wasteful number, since it uses less digits than its factorization.

1984520338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696776.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 1984520338 is about 44547.9554861949. The cubic root of 1984520338 is about 1256.6621021426.

The spelling of 1984520338 in words is "one billion, nine hundred eighty-four million, five hundred twenty thousand, three hundred thirty-eight".