1385401217 has 8 divisors (see below), whose sum is σ = 1397246976. Its totient is φ = 1373570352.

The previous prime is 1385401211. The next prime is 1385401231. The reversal of 1385401217 is 7121045831.

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

It is a cyclic number.

It is not a de Polignac number, because 1385401217 - 2²⁴ = 1368624001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385401211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 261923 + ... + 267159.

It is an arithmetic number, because the mean of its divisors is an integer number (174655872).

Almost surely, 2^1385401217 is an apocalyptic number.

It is an amenable number.

1385401217 is a deficient number, since it is larger than the sum of its proper divisors (11845759).

1385401217 is a wasteful number, since it uses less digits than its factorization.

1385401217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1385401217 is about 37220.9781843519. The cubic root of 1385401217 is about 1114.7868956683.

The spelling of 1385401217 in words is "one billion, three hundred eighty-five million, four hundred one thousand, two hundred seventeen".