380421709 has 4 divisors (see below), whose sum is σ = 380623104. Its totient is φ = 380220316.

The previous prime is 380421707. The next prime is 380421751. The reversal of 380421709 is 907124083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 380421709 - 2¹ = 380421707 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 (380421707) 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, 97837 + ... + 101650.

It is an arithmetic number, because the mean of its divisors is an integer number (95155776).

Almost surely, 2^380421709 is an apocalyptic number.

It is an amenable number.

380421709 is a deficient number, since it is larger than the sum of its proper divisors (201395).

380421709 is a wasteful number, since it uses less digits than its factorization.

380421709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201394.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 380421709 is about 19504.4022979429. The cubic root of 380421709 is about 724.5834842594.

The spelling of 380421709 in words is "three hundred eighty million, four hundred twenty-one thousand, seven hundred nine".