1380939838 has 8 divisors (see below), whose sum is σ = 2105367480. Its totient is φ = 679150680.

The previous prime is 1380939827. The next prime is 1380939851. The reversal of 1380939838 is 8389390831.

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, 5659468 + ... + 5659711.

It is an arithmetic number, because the mean of its divisors is an integer number (263170935).

Almost surely, 2^1380939838 is an apocalyptic number.

1380939838 is a deficient number, since it is larger than the sum of its proper divisors (724427642).

1380939838 is a wasteful number, since it uses less digits than its factorization.

1380939838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11319242.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The square root of 1380939838 is about 37160.9988832378. The cubic root of 1380939838 is about 1113.5889670998.

The spelling of 1380939838 in words is "one billion, three hundred eighty million, nine hundred thirty-nine thousand, eight hundred thirty-eight".