378642635 has 8 divisors (see below), whose sum is σ = 519281376. Its totient is φ = 259640640.

The previous prime is 378642611. The next prime is 378642689. The reversal of 378642635 is 536246873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378642635 - 2¹⁰ = 378641611 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5409146 + ... + 5409215.

It is an arithmetic number, because the mean of its divisors is an integer number (64910172).

Almost surely, 2^378642635 is an apocalyptic number.

378642635 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

378642635 is a deficient number, since it is larger than the sum of its proper divisors (140638741).

378642635 is a wasteful number, since it uses less digits than its factorization.

378642635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10818373.

The product of its digits is 725760, while the sum is 44.

The square root of 378642635 is about 19458.7418658042. The cubic root of 378642635 is about 723.4521937703.

The spelling of 378642635 in words is "three hundred seventy-eight million, six hundred forty-two thousand, six hundred thirty-five".