380420257 has 8 divisors (see below), whose sum is σ = 434884736. Its totient is φ = 325985472.

The previous prime is 380420233. The next prime is 380420267. The reversal of 380420257 is 752024083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 380420257 - 2¹⁵ = 380387489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380420267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41908 + ... + 50170.

It is an arithmetic number, because the mean of its divisors is an integer number (54360592).

Almost surely, 2^380420257 is an apocalyptic number.

It is an amenable number.

380420257 is a deficient number, since it is larger than the sum of its proper divisors (54464479).

380420257 is an equidigital number, since it uses as much as digits as its factorization.

380420257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14847.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 380420257 is about 19504.3650755414. The cubic root of 380420257 is about 724.5825623908.

The spelling of 380420257 in words is "three hundred eighty million, four hundred twenty thousand, two hundred fifty-seven".