378982155 has 32 divisors (see below), whose sum is σ = 634558464. Its totient is φ = 192779136.

The previous prime is 378982129. The next prime is 378982169. The reversal of 378982155 is 551289873.

It is not a de Polignac number, because 378982155 - 2⁷ = 378982027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135582 + ... + 138348.

It is an arithmetic number, because the mean of its divisors is an integer number (19829952).

Almost surely, 2^378982155 is an apocalyptic number.

378982155 is a deficient number, since it is larger than the sum of its proper divisors (255576309).

378982155 is a wasteful number, since it uses less digits than its factorization.

378982155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195.

The product of its digits is 604800, while the sum is 48.

The square root of 378982155 is about 19467.4640104971. The cubic root of 378982155 is about 723.6683633956.

The spelling of 378982155 in words is "three hundred seventy-eight million, nine hundred eighty-two thousand, one hundred fifty-five".