378556885 has 32 divisors (see below), whose sum is σ = 543508992. Its totient is φ = 247484160.

The previous prime is 378556883. The next prime is 378556933. The reversal of 378556885 is 588655873.

It is not a de Polignac number, because 378556885 - 2¹ = 378556883 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 (378556883) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 338347 + ... + 339463.

It is an arithmetic number, because the mean of its divisors is an integer number (16984656).

Almost surely, 2^378556885 is an apocalyptic number.

378556885 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

378556885 is a deficient number, since it is larger than the sum of its proper divisors (164952107).

378556885 is a wasteful number, since it uses less digits than its factorization.

378556885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573.

The product of its digits is 8064000, while the sum is 55.

The square root of 378556885 is about 19456.5383611782. The cubic root of 378556885 is about 723.3975770038.

The spelling of 378556885 in words is "three hundred seventy-eight million, five hundred fifty-six thousand, eight hundred eighty-five".