4002278 has 16 divisors (see below), whose sum is σ = 6918144. Its totient is φ = 1701000.

The previous prime is 4002269. The next prime is 4002281. The reversal of 4002278 is 8722004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653 + ... + 2903.

It is an arithmetic number, because the mean of its divisors is an integer number (432384).

Almost surely, 2^4002278 is an apocalyptic number.

4002278 is a deficient number, since it is larger than the sum of its proper divisors (2915866).

4002278 is a wasteful number, since it uses less digits than its factorization.

4002278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 4002278 is about 2000.5694189405. The cubic root of 4002278 is about 158.7702336415.

The spelling of 4002278 in words is "four million, two thousand, two hundred seventy-eight".