378410381 has 2 divisors, whose sum is σ = 378410382. Its totient is φ = 378410380.

The previous prime is 378410341. The next prime is 378410387. The reversal of 378410381 is 183014873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377524900 + 885481 = 19430^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 378410381 - 2²⁶ = 311301517 is a prime.

It is a super-2 number, since 2×378410381² = 286388832897130322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378410387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189205190 + 189205191.

It is an arithmetic number, because the mean of its divisors is an integer number (189205191).

Almost surely, 2^378410381 is an apocalyptic number.

It is an amenable number.

378410381 is a deficient number, since it is larger than the sum of its proper divisors (1).

378410381 is an equidigital number, since it uses as much as digits as its factorization.

378410381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 378410381 is about 19452.7730928009. The cubic root of 378410381 is about 723.3042450921.

The spelling of 378410381 in words is "three hundred seventy-eight million, four hundred ten thousand, three hundred eighty-one".