378030449 has 2 divisors, whose sum is σ = 378030450. Its totient is φ = 378030448.

The previous prime is 378030407. The next prime is 378030469. The reversal of 378030449 is 944030873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203262049 + 174768400 = 14257^2 + 13220^2 .

It is a cyclic number.

It is not a de Polignac number, because 378030449 - 2¹² = 378026353 is a prime.

It is a super-2 number, since 2×378030449² = 285814040742283202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (378030469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189015224 + 189015225.

It is an arithmetic number, because the mean of its divisors is an integer number (189015225).

Almost surely, 2^378030449 is an apocalyptic number.

It is an amenable number.

378030449 is a deficient number, since it is larger than the sum of its proper divisors (1).

378030449 is an equidigital number, since it uses as much as digits as its factorization.

378030449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 378030449 is about 19443.0051432385. The cubic root of 378030449 is about 723.0620931286.

The spelling of 378030449 in words is "three hundred seventy-eight million, thirty thousand, four hundred forty-nine".