1385611950 has 48 divisors (see below), whose sum is σ = 3492673776. Its totient is φ = 363436800.

The previous prime is 1385611949. The next prime is 1385611963. The reversal of 1385611950 is 591165831.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1385611899 and 1385611908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66567 + ... + 84866.

It is an arithmetic number, because the mean of its divisors is an integer number (72764037).

Almost surely, 2^1385611950 is an apocalyptic number.

1385611950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1385611950 is an abundant number, since it is smaller than the sum of its proper divisors (2107061826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1385611950 is a wasteful number, since it uses less digits than its factorization.

1385611950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151509 (or 151504 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 1385611950 is about 37223.8089131137. The cubic root of 1385611950 is about 1114.8434161125.

The spelling of 1385611950 in words is "one billion, three hundred eighty-five million, six hundred eleven thousand, nine hundred fifty".