378300249 has 6 divisors (see below), whose sum is σ = 546433706. Its totient is φ = 252200160.

The previous prime is 378300239. The next prime is 378300301. The reversal of 378300249 is 942003873.

It can be written as a sum of positive squares in only one way, i.e., 344288025 + 34012224 = 18555^2 + 5832^2 .

It is not a de Polignac number, because 378300249 - 2⁴ = 378300233 is a prime.

It is a super-2 number, since 2×378300249² = 286222156786924002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378300229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21016672 + ... + 21016689.

Almost surely, 2^378300249 is an apocalyptic number.

It is an amenable number.

378300249 is a deficient number, since it is larger than the sum of its proper divisors (168133457).

378300249 is a wasteful number, since it uses less digits than its factorization.

378300249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42033367 (or 42033364 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 378300249 is about 19449.9421335900. The cubic root of 378300249 is about 723.2340684828.

The spelling of 378300249 in words is "three hundred seventy-eight million, three hundred thousand, two hundred forty-nine".