380421 has 12 divisors (see below), whose sum is σ = 562848. Its totient is φ = 247464.

The previous prime is 380417. The next prime is 380423. The reversal of 380421 is 124083.

It is a happy number.

It is not a de Polignac number, because 380421 - 2² = 380417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 380394 and 380403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105 + ... + 878.

It is an arithmetic number, because the mean of its divisors is an integer number (46904).

2³⁸⁰⁴²¹ is an apocalyptic number.

It is an amenable number.

380421 is a deficient number, since it is larger than the sum of its proper divisors (182427).

380421 is a wasteful number, since it uses less digits than its factorization.

380421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 380421 is about 616.7827818608. The cubic root of 380421 is about 72.4583034119.

The spelling of 380421 in words is "three hundred eighty thousand, four hundred twenty-one".