381204783 has 24 divisors (see below), whose sum is σ = 581867520. Its totient is φ = 239999760.

The previous prime is 381204781. The next prime is 381204793. The reversal of 381204783 is 387402183.

381204783 is a `hidden beast` number, since 381 + 204 + 78 + 3 = 666.

It is not a de Polignac number, because 381204783 - 2¹ = 381204781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381204781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4698 + ... + 28008.

It is an arithmetic number, because the mean of its divisors is an integer number (24244480).

Almost surely, 2^381204783 is an apocalyptic number.

381204783 is a deficient number, since it is larger than the sum of its proper divisors (200662737).

381204783 is a wasteful number, since it uses less digits than its factorization.

381204783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23419 (or 23416 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 381204783 is about 19524.4662667126. The cubic root of 381204783 is about 725.0803132590.

The spelling of 381204783 in words is "three hundred eighty-one million, two hundred four thousand, seven hundred eighty-three".