380230021 has 4 divisors (see below), whose sum is σ = 380445772. Its totient is φ = 380014272.

The previous prime is 380229977. The next prime is 380230031. The reversal of 380230021 is 120032083.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 311522500 + 68707521 = 17650^2 + 8289^2 .

It is a cyclic number.

It is not a de Polignac number, because 380230021 - 2⁷ = 380229893 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 (380230031) 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, 105210 + ... + 108763.

It is an arithmetic number, because the mean of its divisors is an integer number (95111443).

Almost surely, 2^380230021 is an apocalyptic number.

It is an amenable number.

380230021 is a deficient number, since it is larger than the sum of its proper divisors (215751).

380230021 is a wasteful number, since it uses less digits than its factorization.

380230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215750.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 380230021 is about 19499.4877112195. The cubic root of 380230021 is about 724.4617620663.

The spelling of 380230021 in words is "three hundred eighty million, two hundred thirty thousand, twenty-one".