380474839 has 2 divisors, whose sum is σ = 380474840. Its totient is φ = 380474838.

The previous prime is 380474821. The next prime is 380474849. The reversal of 380474839 is 938474083.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 380474839 - 2⁹ = 380474327 is a prime.

It is a super-2 number, since 2×380474839² = 289522206224151842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380474819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190237419 + 190237420.

It is an arithmetic number, because the mean of its divisors is an integer number (190237420).

Almost surely, 2^380474839 is an apocalyptic number.

380474839 is a deficient number, since it is larger than the sum of its proper divisors (1).

380474839 is an equidigital number, since it uses as much as digits as its factorization.

380474839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 380474839 is about 19505.7642506004. The cubic root of 380474839 is about 724.6172146588.

The spelling of 380474839 in words is "three hundred eighty million, four hundred seventy-four thousand, eight hundred thirty-nine".