378781941 has 8 divisors (see below), whose sum is σ = 505160064. Its totient is φ = 252462560.

The previous prime is 378781939. The next prime is 378781951. The reversal of 378781941 is 149187873.

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

It is a cyclic number.

It is not a de Polignac number, because 378781941 - 2¹ = 378781939 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378781951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3625 + ... + 27761.

It is an arithmetic number, because the mean of its divisors is an integer number (63145008).

Almost surely, 2^378781941 is an apocalyptic number.

It is an amenable number.

378781941 is a deficient number, since it is larger than the sum of its proper divisors (126378123).

378781941 is a wasteful number, since it uses less digits than its factorization.

378781941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29371.

The product of its digits is 338688, while the sum is 48.

The square root of 378781941 is about 19462.3210589076. The cubic root of 378781941 is about 723.5409043953.

The spelling of 378781941 in words is "three hundred seventy-eight million, seven hundred eighty-one thousand, nine hundred forty-one".