387297378 has 48 divisors (see below), whose sum is σ = 934872120. Its totient is φ = 115057152.

The previous prime is 387297373. The next prime is 387297397. The reversal of 387297378 is 873792783.

It can be written as a sum of positive squares in 4 ways, for example, as 321735969 + 65561409 = 17937^2 + 8097^2 .

It is not an unprimeable number, because it can be changed into a prime (387297371) 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 23 ways as a sum of consecutive naturals, for example, 21751 + ... + 35322.

Almost surely, 2^387297378 is an apocalyptic number.

387297378 is an abundant number, since it is smaller than the sum of its proper divisors (547574742).

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

387297378 is a wasteful number, since it uses less digits than its factorization.

387297378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57123 (or 57120 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 387297378 is about 19679.8724081230. The cubic root of 387297378 is about 728.9227734639.

The spelling of 387297378 in words is "three hundred eighty-seven million, two hundred ninety-seven thousand, three hundred seventy-eight".