4000279 has 8 divisors (see below), whose sum is σ = 4238640. Its totient is φ = 3764736.

The previous prime is 4000277. The next prime is 4000291. The reversal of 4000279 is 9720004.

4000279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4000279 - 2¹ = 4000277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2679 + ... + 3895.

It is an arithmetic number, because the mean of its divisors is an integer number (529830).

Almost surely, 2^4000279 is an apocalyptic number.

4000279 is a deficient number, since it is larger than the sum of its proper divisors (238361).

4000279 is a wasteful number, since it uses less digits than its factorization.

4000279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 4000279 is about 2000.0697487838. The cubic root of 4000279 is about 158.7437958185.

The spelling of 4000279 in words is "four million, two hundred seventy-nine", and thus it is an aban number.