378117434 has 16 divisors (see below), whose sum is σ = 600942888. Its totient is φ = 177818112.

The previous prime is 378117433. The next prime is 378117497. The reversal of 378117434 is 434711873.

It can be written as a sum of positive squares in 4 ways, for example, as 295943209 + 82174225 = 17203^2 + 9065^2 .

It is not an unprimeable number, because it can be changed into a prime (378117431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67094 + ... + 72510.

Almost surely, 2^378117434 is an apocalyptic number.

378117434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

378117434 is a deficient number, since it is larger than the sum of its proper divisors (222825454).

378117434 is a wasteful number, since it uses less digits than its factorization.

378117434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7489.

The product of its digits is 56448, while the sum is 38.

The square root of 378117434 is about 19445.2419372966. The cubic root of 378117434 is about 723.1175478615.

The spelling of 378117434 in words is "three hundred seventy-eight million, one hundred seventeen thousand, four hundred thirty-four".