1838389514 has 16 divisors (see below), whose sum is σ = 3010390152. Its totient is φ = 836863488.

The previous prime is 1838389507. The next prime is 1838389523. The reversal of 1838389514 is 4159838381.

It can be written as a sum of positive squares in 4 ways, for example, as 1758376489 + 80013025 = 41933^2 + 8945^2 .

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, 482399 + ... + 486194.

Almost surely, 2^1838389514 is an apocalyptic number.

1838389514 is a deficient number, since it is larger than the sum of its proper divisors (1172000638).

1838389514 is a wasteful number, since it uses less digits than its factorization.

1838389514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968681.

The product of its digits is 829440, while the sum is 50.

The square root of 1838389514 is about 42876.4447453377. Note that the first 3 decimals coincide. The cubic root of 1838389514 is about 1225.0275188043.

The spelling of 1838389514 in words is "one billion, eight hundred thirty-eight million, three hundred eighty-nine thousand, five hundred fourteen".