4006378 has 24 divisors (see below), whose sum is σ = 6583680. Its totient is φ = 1826280.

The previous prime is 4006363. The next prime is 4006381. The reversal of 4006378 is 8736004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22293 + ... + 22471.

It is an arithmetic number, because the mean of its divisors is an integer number (274320).

Almost surely, 2^4006378 is an apocalyptic number.

4006378 is a deficient number, since it is larger than the sum of its proper divisors (2577302).

4006378 is a wasteful number, since it uses less digits than its factorization.

4006378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 4006378 is about 2001.5938648987. The cubic root of 4006378 is about 158.8244307596.

The spelling of 4006378 in words is "four million, six thousand, three hundred seventy-eight".