381938801 has 6 divisors (see below), whose sum is σ = 388525602. Its totient is φ = 375461840.

The previous prime is 381938731. The next prime is 381938807. The reversal of 381938801 is 108839183.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 367680625 + 14258176 = 19175^2 + 3776^2 .

It is not a de Polignac number, because 381938801 - 2¹⁴ = 381922417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381938807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51380 + ... + 58341.

It is an arithmetic number, because the mean of its divisors is an integer number (64754267).

Almost surely, 2^381938801 is an apocalyptic number.

It is an amenable number.

381938801 is a deficient number, since it is larger than the sum of its proper divisors (6586801).

381938801 is an equidigital number, since it uses as much as digits as its factorization.

381938801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109839 (or 109780 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 381938801 is about 19543.2546163632. The cubic root of 381938801 is about 725.5454007819.

The spelling of 381938801 in words is "three hundred eighty-one million, nine hundred thirty-eight thousand, eight hundred one".