387120385 has 16 divisors (see below), whose sum is σ = 468115200. Its totient is φ = 307326976.

The previous prime is 387120373. The next prime is 387120389. The reversal of 387120385 is 583021783.

It is a cyclic number.

It is not a de Polignac number, because 387120385 - 2¹¹ = 387118337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387120389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538056 + ... + 538774.

It is an arithmetic number, because the mean of its divisors is an integer number (29257200).

Almost surely, 2^387120385 is an apocalyptic number.

It is an amenable number.

387120385 is a deficient number, since it is larger than the sum of its proper divisors (80994815).

387120385 is a wasteful number, since it uses less digits than its factorization.

387120385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 387120385 is about 19675.3750917232. The cubic root of 387120385 is about 728.8117185023.

The spelling of 387120385 in words is "three hundred eighty-seven million, one hundred twenty thousand, three hundred eighty-five".