378345543 has 16 divisors (see below), whose sum is σ = 507534336. Its totient is φ = 250699680.

The previous prime is 378345509. The next prime is 378345553. The reversal of 378345543 is 345543873.

It is not a de Polignac number, because 378345543 - 2¹⁷ = 378214471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378345495 and 378345504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378345503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584446 + ... + 585092.

It is an arithmetic number, because the mean of its divisors is an integer number (31720896).

Almost surely, 2^378345543 is an apocalyptic number.

378345543 is a deficient number, since it is larger than the sum of its proper divisors (129188793).

378345543 is a wasteful number, since it uses less digits than its factorization.

378345543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its digits is 604800, while the sum is 42.

The square root of 378345543 is about 19451.1064723835. The cubic root of 378345543 is about 723.2629316735.

The spelling of 378345543 in words is "three hundred seventy-eight million, three hundred forty-five thousand, five hundred forty-three".