378744387 has 16 divisors (see below), whose sum is σ = 590557440. Its totient is φ = 211391712.

The previous prime is 378744349. The next prime is 378744397. The reversal of 378744387 is 783447873.

It is not a de Polignac number, because 378744387 - 2⁶ = 378744323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378744337) 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, 208812 + ... + 210617.

It is an arithmetic number, because the mean of its divisors is an integer number (36909840).

Almost surely, 2^378744387 is an apocalyptic number.

378744387 is a deficient number, since it is larger than the sum of its proper divisors (211813053).

378744387 is a wasteful number, since it uses less digits than its factorization.

378744387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419482.

The product of its digits is 3161088, while the sum is 51.

The square root of 378744387 is about 19461.3562477028. The cubic root of 378744387 is about 723.5169919977.

The spelling of 378744387 in words is "three hundred seventy-eight million, seven hundred forty-four thousand, three hundred eighty-seven".