378925869 has 24 divisors (see below), whose sum is σ = 622297728. Its totient is φ = 203790720.

The previous prime is 378925867. The next prime is 378925871. The reversal of 378925869 is 968529873.

It is an interprime number because it is at equal distance from previous prime (378925867) and next prime (378925871).

It is not a de Polignac number, because 378925869 - 2¹ = 378925867 is a prime.

It is a super-2 number, since 2×378925869² = 287169628394810322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378925867) 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 23 ways as a sum of consecutive naturals, for example, 73317 + ... + 78314.

It is an arithmetic number, because the mean of its divisors is an integer number (25929072).

Almost surely, 2^378925869 is an apocalyptic number.

It is an amenable number.

378925869 is a deficient number, since it is larger than the sum of its proper divisors (243371859).

378925869 is a wasteful number, since it uses less digits than its factorization.

378925869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151665 (or 151658 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 378925869 is about 19466.0183139747. The cubic root of 378925869 is about 723.6325354869.

The spelling of 378925869 in words is "three hundred seventy-eight million, nine hundred twenty-five thousand, eight hundred sixty-nine".