381474747 has 24 divisors (see below), whose sum is σ = 602259840. Its totient is φ = 231632640.

The previous prime is 381474739. The next prime is 381474763. The reversal of 381474747 is 747474183.

381474747 is a `hidden beast` number, since 38 + 147 + 474 + 7 = 666.

It is not a de Polignac number, because 381474747 - 2³ = 381474739 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (381474767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35472 + ... + 44957.

It is an arithmetic number, because the mean of its divisors is an integer number (25094160).

Almost surely, 2^381474747 is an apocalyptic number.

381474747 is a deficient number, since it is larger than the sum of its proper divisors (220785093).

381474747 is a wasteful number, since it uses less digits than its factorization.

381474747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80483 (or 80480 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 381474747 is about 19531.3785227771. The cubic root of 381474747 is about 725.2514368479.

The spelling of 381474747 in words is "three hundred eighty-one million, four hundred seventy-four thousand, seven hundred forty-seven".