1385650 has 48 divisors (see below), whose sum is σ = 3053376. Its totient is φ = 457920.

The previous prime is 1385647. The next prime is 1385693. The reversal of 1385650 is 565831.

1385650 = T₅₆ + T₅₇ + ... + T₂₀₃.

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, 12897 + ... + 13003.

It is an arithmetic number, because the mean of its divisors is an integer number (63612).

2^1385650 is an apocalyptic number.

1385650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1385650 is an abundant number, since it is smaller than the sum of its proper divisors (1667726).

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

1385650 is a wasteful number, since it uses less digits than its factorization.

1385650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1385650 is about 1177.1363557379. The cubic root of 1385650 is about 111.4853620846.

The spelling of 1385650 in words is "one million, three hundred eighty-five thousand, six hundred fifty".