381974383 has 18 divisors (see below), whose sum is σ = 446885624. Its totient is φ = 319827552.

The previous prime is 381974381. The next prime is 381974387. The reversal of 381974383 is 383479183.

It is a happy number.

It is not a de Polignac number, because 381974383 - 2¹ = 381974381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381974381) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4291803 + ... + 4291891.

Almost surely, 2^381974383 is an apocalyptic number.

381974383 is a deficient number, since it is larger than the sum of its proper divisors (64911241).

381974383 is an frugal number, since it uses more digits than its factorization.

381974383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 179 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 381974383 is about 19544.1649348341. The cubic root of 381974383 is about 725.5679310535.

The spelling of 381974383 in words is "three hundred eighty-one million, nine hundred seventy-four thousand, three hundred eighty-three".