1385955207 has 24 divisors (see below), whose sum is σ = 2463921824. Its totient is φ = 731052864.

The previous prime is 1385955203. The next prime is 1385955217. The reversal of 1385955207 is 7025595831.

1385955207 is a `hidden beast` number, since 1 + 3 + 8 + 595 + 52 + 0 + 7 = 666.

It is not a de Polignac number, because 1385955207 - 2² = 1385955203 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385955203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 845308 + ... + 846945.

Almost surely, 2^1385955207 is an apocalyptic number.

1385955207 is a deficient number, since it is larger than the sum of its proper divisors (1077966617).

1385955207 is a wasteful number, since it uses less digits than its factorization.

1385955207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692279 (or 1692276 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 1385955207 is about 37228.4193459781. The cubic root of 1385955207 is about 1114.9354683908.

The spelling of 1385955207 in words is "one billion, three hundred eighty-five million, nine hundred fifty-five thousand, two hundred seven".