378744507 has 6 divisors (see below), whose sum is σ = 547075412. Its totient is φ = 252496332.

The previous prime is 378744503. The next prime is 378744523. The reversal of 378744507 is 705447873.

378744507 is a `hidden beast` number, since 3 + 78 + 74 + 4 + 507 = 666.

It is not a de Polignac number, because 378744507 - 2² = 378744503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378744503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21041353 + ... + 21041370.

Almost surely, 2^378744507 is an apocalyptic number.

378744507 is a deficient number, since it is larger than the sum of its proper divisors (168330905).

378744507 is a wasteful number, since it uses less digits than its factorization.

378744507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42082729 (or 42082726 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The square root of 378744507 is about 19461.3593307354. The cubic root of 378744507 is about 723.5170684099.

The spelling of 378744507 in words is "three hundred seventy-eight million, seven hundred forty-four thousand, five hundred seven".