380172211 has 4 divisors (see below), whose sum is σ = 380211424. Its totient is φ = 380133000.

The previous prime is 380172161. The next prime is 380172239. The reversal of 380172211 is 112271083.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 380172211 - 2⁹ = 380171699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380172011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6721 + ... + 28381.

It is an arithmetic number, because the mean of its divisors is an integer number (95052856).

Almost surely, 2^380172211 is an apocalyptic number.

380172211 is a deficient number, since it is larger than the sum of its proper divisors (39213).

380172211 is a wasteful number, since it uses less digits than its factorization.

380172211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39212.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 380172211 is about 19498.0053082360. The cubic root of 380172211 is about 724.4250445928.

The spelling of 380172211 in words is "three hundred eighty million, one hundred seventy-two thousand, two hundred eleven".