380070257 has 4 divisors (see below), whose sum is σ = 434366016. Its totient is φ = 325774500.

The previous prime is 380070221. The next prime is 380070263. The reversal of 380070257 is 752070083.

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 380070257 - 2⁸ = 380070001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (380070277) 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, 27147869 + ... + 27147882.

It is an arithmetic number, because the mean of its divisors is an integer number (108591504).

Almost surely, 2^380070257 is an apocalyptic number.

It is an amenable number.

380070257 is a deficient number, since it is larger than the sum of its proper divisors (54295759).

380070257 is an equidigital number, since it uses as much as digits as its factorization.

380070257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54295758.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 380070257 is about 19495.3906603587. The cubic root of 380070257 is about 724.3602804041.

The spelling of 380070257 in words is "three hundred eighty million, seventy thousand, two hundred fifty-seven".