380432221 has 4 divisors (see below), whose sum is σ = 409696252. Its totient is φ = 351168192.

The previous prime is 380432219. The next prime is 380432233. The reversal of 380432221 is 122234083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122234083 = 257 ⋅475619.

It can be written as a sum of positive squares in 2 ways, for example, as 184824025 + 195608196 = 13595^2 + 13986^2 .

It is a cyclic number.

It is not a de Polignac number, because 380432221 - 2¹ = 380432219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380432281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14631996 + ... + 14632021.

It is an arithmetic number, because the mean of its divisors is an integer number (102424063).

Almost surely, 2^380432221 is an apocalyptic number.

It is an amenable number.

380432221 is a deficient number, since it is larger than the sum of its proper divisors (29264031).

380432221 is a wasteful number, since it uses less digits than its factorization.

380432221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29264030.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 380432221 is about 19504.6717737059. The cubic root of 380432221 is about 724.5901582138.

The spelling of 380432221 in words is "three hundred eighty million, four hundred thirty-two thousand, two hundred twenty-one".