381072383 has 4 divisors (see below), whose sum is σ = 394212840. Its totient is φ = 367931928.

The previous prime is 381072371. The next prime is 381072401. The reversal of 381072383 is 383270183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381072383 - 2¹² = 381068287 is a prime.

It is a super-2 number, since 2×381072383² = 290432322170597378, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381072353) 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, 6570185 + ... + 6570242.

It is an arithmetic number, because the mean of its divisors is an integer number (98553210).

Almost surely, 2^381072383 is an apocalyptic number.

381072383 is a deficient number, since it is larger than the sum of its proper divisors (13140457).

381072383 is a wasteful number, since it uses less digits than its factorization.

381072383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13140456.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 381072383 is about 19521.0753546007. The cubic root of 381072383 is about 724.9963586024.

The spelling of 381072383 in words is "three hundred eighty-one million, seventy-two thousand, three hundred eighty-three".