381773378 has 8 divisors (see below), whose sum is σ = 654468672. Its totient is φ = 163617156.

The previous prime is 381773377. The next prime is 381773443. The reversal of 381773378 is 873377183.

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

It is not an unprimeable number, because it can be changed into a prime (381773377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13634750 + ... + 13634777.

It is an arithmetic number, because the mean of its divisors is an integer number (81808584).

Almost surely, 2^381773378 is an apocalyptic number.

381773378 is a deficient number, since it is larger than the sum of its proper divisors (272695294).

381773378 is a wasteful number, since it uses less digits than its factorization.

381773378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27269536.

The product of its digits is 592704, while the sum is 47.

The square root of 381773378 is about 19539.0219304857. The cubic root of 381773378 is about 725.4406377252.

The spelling of 381773378 in words is "three hundred eighty-one million, seven hundred seventy-three thousand, three hundred seventy-eight".