1383491950 has 24 divisors (see below), whose sum is σ = 2575549440. Its totient is φ = 552912000.

The previous prime is 1383491947. The next prime is 1383491981. The reversal of 1383491950 is 591943831.

It is a junction number, because it is equal to n+sod(n) for n = 1383491897 and 1383491906.

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 11 ways as a sum of consecutive naturals, for example, 48531 + ... + 71569.

It is an arithmetic number, because the mean of its divisors is an integer number (107314560).

Almost surely, 2^1383491950 is an apocalyptic number.

1383491950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1383491950 is a deficient number, since it is larger than the sum of its proper divisors (1192057490).

1383491950 is a wasteful number, since it uses less digits than its factorization.

1383491950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24252 (or 24247 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1383491950 is about 37195.3216144181. The cubic root of 1383491950 is about 1114.2745520703.

The spelling of 1383491950 in words is "one billion, three hundred eighty-three million, four hundred ninety-one thousand, nine hundred fifty".