1385621634 has 8 divisors (see below), whose sum is σ = 2771243280. Its totient is φ = 461873876.

The previous prime is 1385621603. The next prime is 1385621659. The reversal of 1385621634 is 4361265831.

It is a sphenic number, since it is the product of 3 distinct primes.

1385621634 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1385621592 and 1385621601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115468464 + ... + 115468475.

It is an arithmetic number, because the mean of its divisors is an integer number (346405410).

Almost surely, 2^1385621634 is an apocalyptic number.

1385621634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1385621634 is a wasteful number, since it uses less digits than its factorization.

1385621634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230936944.

The product of its digits is 103680, while the sum is 39.

The square root of 1385621634 is about 37223.9389909236. The cubic root of 1385621634 is about 1114.8460133088.

The spelling of 1385621634 in words is "one billion, three hundred eighty-five million, six hundred twenty-one thousand, six hundred thirty-four".