4005466378 has 4 divisors (see below), whose sum is σ = 6008199570. Its totient is φ = 2002733188.

The previous prime is 4005466351. The next prime is 4005466411. The reversal of 4005466378 is 8736645004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2867281209 + 1138185169 = 53547^2 + 33737^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001366593 + ... + 1001366596.

Almost surely, 2^4005466378 is an apocalyptic number.

4005466378 is a deficient number, since it is larger than the sum of its proper divisors (2002733192).

4005466378 is a wasteful number, since it uses less digits than its factorization.

4005466378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002733191.

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 4005466378 is about 63288.7539615057. The cubic root of 4005466378 is about 1588.1238340004.

The spelling of 4005466378 in words is "four billion, five million, four hundred sixty-six thousand, three hundred seventy-eight".