378426659 has 16 divisors (see below), whose sum is σ = 427828800. Its totient is φ = 334084608.

The previous prime is 378426637. The next prime is 378426701. The reversal of 378426659 is 956624873.

It is a happy number.

It is not a de Polignac number, because 378426659 - 2⁸ = 378426403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378423659) 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, 46787 + ... + 54275.

It is an arithmetic number, because the mean of its divisors is an integer number (26739300).

Almost surely, 2^378426659 is an apocalyptic number.

378426659 is a deficient number, since it is larger than the sum of its proper divisors (49402141).

378426659 is an equidigital number, since it uses as much as digits as its factorization.

378426659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7551 (or 7525 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 378426659 is about 19453.1914862318. The cubic root of 378426659 is about 723.3146163524.

The spelling of 378426659 in words is "three hundred seventy-eight million, four hundred twenty-six thousand, six hundred fifty-nine".