1381979350 has 12 divisors (see below), whose sum is σ = 2570481684. Its totient is φ = 552791720.

The previous prime is 1381979327. The next prime is 1381979371. The reversal of 1381979350 is 539791831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1381979350.

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 5 ways as a sum of consecutive naturals, for example, 13819744 + ... + 13819843.

It is an arithmetic number, because the mean of its divisors is an integer number (214206807).

Almost surely, 2^1381979350 is an apocalyptic number.

1381979350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381979350 is a deficient number, since it is larger than the sum of its proper divisors (1188502334).

1381979350 is a wasteful number, since it uses less digits than its factorization.

1381979350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27639599 (or 27639594 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1381979350 is about 37174.9828513747. The cubic root of 1381979350 is about 1113.8683176124.

The spelling of 1381979350 in words is "one billion, three hundred eighty-one million, nine hundred seventy-nine thousand, three hundred fifty".