381857301 has 16 divisors (see below), whose sum is σ = 646531200. Its totient is φ = 218204064.

The previous prime is 381857291. The next prime is 381857309. The reversal of 381857301 is 103758183.

381857301 is a `hidden beast` number, since 3 + 81 + 8 + 573 + 0 + 1 = 666.

It is not a de Polignac number, because 381857301 - 2⁷ = 381857173 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381857309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1010016 + ... + 1010393.

It is an arithmetic number, because the mean of its divisors is an integer number (40408200).

Almost surely, 2^381857301 is an apocalyptic number.

It is an amenable number.

381857301 is a deficient number, since it is larger than the sum of its proper divisors (264673899).

381857301 is a wasteful number, since it uses less digits than its factorization.

381857301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020425 (or 2020419 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 381857301 is about 19541.1693867076. The cubic root of 381857301 is about 725.4937902826.

The spelling of 381857301 in words is "three hundred eighty-one million, eight hundred fifty-seven thousand, three hundred one".