543780378 has 40 divisors (see below), whose sum is σ = 1223199648. Its totient is φ = 180556776.

The previous prime is 543780353. The next prime is 543780383. The reversal of 543780378 is 873087345.

543780378 is a `hidden beast` number, since 543 + 78 + 0 + 37 + 8 = 666.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 36225 + ... + 48987.

Almost surely, 2^543780378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543780378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611599824).

543780378 is an abundant number, since it is smaller than the sum of its proper divisors (679419270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

543780378 is a wasteful number, since it uses less digits than its factorization.

543780378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13040 (or 13031 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 543780378 is about 23319.0989963163. The cubic root of 543780378 is about 816.2211500505.

The spelling of 543780378 in words is "five hundred forty-three million, seven hundred eighty thousand, three hundred seventy-eight".