381977934 has 16 divisors (see below), whose sum is σ = 822721872. Its totient is φ = 117531648.

The previous prime is 381977929. The next prime is 381977969. The reversal of 381977934 is 439779183.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2448499 + ... + 2448654.

It is an arithmetic number, because the mean of its divisors is an integer number (51420117).

Almost surely, 2^381977934 is an apocalyptic number.

381977934 is an abundant number, since it is smaller than the sum of its proper divisors (440743938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381977934 is a wasteful number, since it uses less digits than its factorization.

381977934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897171.

The product of its digits is 1143072, while the sum is 51.

The square root of 381977934 is about 19544.2557801519. The cubic root of 381977934 is about 725.5701794449.

The spelling of 381977934 in words is "three hundred eighty-one million, nine hundred seventy-seven thousand, nine hundred thirty-four".