380861001 has 16 divisors (see below), whose sum is σ = 569829120. Its totient is φ = 251391600.

The previous prime is 380860999. The next prime is 380861027. The reversal of 380861001 is 100168083.

It is not a de Polignac number, because 380861001 - 2¹ = 380860999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (380861051) 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, 67105 + ... + 72558.

It is an arithmetic number, because the mean of its divisors is an integer number (35614320).

Almost surely, 2^380861001 is an apocalyptic number.

It is an amenable number.

380861001 is a deficient number, since it is larger than the sum of its proper divisors (188968119).

380861001 is a wasteful number, since it uses less digits than its factorization.

380861001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139773 (or 139767 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 380861001 is about 19515.6604038910. The cubic root of 380861001 is about 724.8622812528.

The spelling of 380861001 in words is "three hundred eighty million, eight hundred sixty-one thousand, one".