387385378 has 4 divisors (see below), whose sum is σ = 581078070. Its totient is φ = 193692688.

The previous prime is 387385363. The next prime is 387385379. The reversal of 387385378 is 873583783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873583783 = 47 ⋅18586889.

It can be written as a sum of positive squares in only one way, i.e., 299532249 + 87853129 = 17307^2 + 9373^2 .

It is not an unprimeable number, because it can be changed into a prime (387385379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96846343 + ... + 96846346.

Almost surely, 2^387385378 is an apocalyptic number.

387385378 is a deficient number, since it is larger than the sum of its proper divisors (193692692).

387385378 is a wasteful number, since it uses less digits than its factorization.

387385378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193692691.

The product of its digits is 3386880, while the sum is 52.

The square root of 387385378 is about 19682.1080679891. The cubic root of 387385378 is about 728.9779768211.

The spelling of 387385378 in words is "three hundred eighty-seven million, three hundred eighty-five thousand, three hundred seventy-eight".