378469369 has 2 divisors, whose sum is σ = 378469370. Its totient is φ = 378469368.

The previous prime is 378469331. The next prime is 378469397. The reversal of 378469369 is 963964873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377796969 + 672400 = 19437^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 378469369 - 2²⁷ = 244251641 is a prime.

It is a super-2 number, since 2×378469369² = 286478126542516322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (378469769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189234684 + 189234685.

It is an arithmetic number, because the mean of its divisors is an integer number (189234685).

Almost surely, 2^378469369 is an apocalyptic number.

It is an amenable number.

378469369 is a deficient number, since it is larger than the sum of its proper divisors (1).

378469369 is an equidigital number, since it uses as much as digits as its factorization.

378469369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 55.

The square root of 378469369 is about 19454.2892185759. The cubic root of 378469369 is about 723.3418269134.

It can be divided in two parts, 3784 and 69369, that added together give a triangular number (73153 = T₃₈₂).

The spelling of 378469369 in words is "three hundred seventy-eight million, four hundred sixty-nine thousand, three hundred sixty-nine".