378881955 has 48 divisors (see below), whose sum is σ = 704602080. Its totient is φ = 195084288.

The previous prime is 378881953. The next prime is 378881959. The reversal of 378881955 is 559188873.

378881955 is a `hidden beast` number, since 378 + 88 + 195 + 5 = 666.

It is not a de Polignac number, because 378881955 - 2¹ = 378881953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378881953) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29859 + ... + 40611.

It is an arithmetic number, because the mean of its divisors is an integer number (14679210).

Almost surely, 2^378881955 is an apocalyptic number.

378881955 is a deficient number, since it is larger than the sum of its proper divisors (325720125).

378881955 is a wasteful number, since it uses less digits than its factorization.

378881955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10802 (or 10790 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The square root of 378881955 is about 19464.8903156427. The cubic root of 378881955 is about 723.6045803032.

The spelling of 378881955 in words is "three hundred seventy-eight million, eight hundred eighty-one thousand, nine hundred fifty-five".