1385448650 has 48 divisors (see below), whose sum is σ = 2717906400. Its totient is φ = 523978560.

The previous prime is 1385448629. The next prime is 1385448661. The reversal of 1385448650 is 568445831.

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, 624944 + ... + 627156.

It is an arithmetic number, because the mean of its divisors is an integer number (56623050).

Almost surely, 2^1385448650 is an apocalyptic number.

1385448650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1385448650 is a deficient number, since it is larger than the sum of its proper divisors (1332457750).

1385448650 is a wasteful number, since it uses less digits than its factorization.

1385448650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2898 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The square root of 1385448650 is about 37221.6153598954. The cubic root of 1385448650 is about 1114.7996181159.

The spelling of 1385448650 in words is "one billion, three hundred eighty-five million, four hundred forty-eight thousand, six hundred fifty".